I
n
d
on
e
s
i
an
Jo
u
r
n
al
o
f
El
e
c
t
r
i
c
al
En
gi
n
e
e
r
i
n
g
an
d
C
o
m
p
u
te
r
S
c
i
e
n
c
e
V
o
l
.
20
,
N
o
.
2
,
N
o
v
e
m
b
e
r
20
20
,
pp.
105
3
~
10
61
IS
S
N
:
25
0
2
-
4752
,
D
O
I
:
10.
1
1591
/
i
j
e
e
c
s
.
v
20
.i
2
.
pp
105
3
-
10
61
1053
Jou
r
n
al
h
o
m
e
pa
ge
:
ht
t
p:
/
/
i
j
e
e
c
s
.
i
a
e
s
c
or
e
.
c
om
A
r
d
u
i
n
o
b
a
s
e
d
o
u
t
i
n
g
a
n
d
a
t
t
e
n
d
a
n
c
e
s
y
st
e
m
f
o
r
b
o
a
r
d
i
n
g
scho
o
l
st
u
d
e
n
t
s
M
atth
e
w
K
h
o
o
K
ah
We
n
,
N
ab
i
h
ah
b
i
n
t
i
A
h
m
ad
,
S
i
ti
H
a
w
a
b
i
n
ti
R
u
s
l
an
F
a
c
ul
t
y
o
f
E
l
e
c
t
r
i
c
a
l
a
nd
E
l
e
c
t
r
o
ni
c
E
ng
i
ne
e
r
i
ng
,
U
ni
v
e
r
s
i
t
i
T
un
H
u
s
s
e
i
n
O
nn
M
a
l
a
y
s
i
a
,
M
a
l
a
y
s
i
a
A
r
ti
c
l
e
I
n
fo
A
B
S
TR
A
C
T
Ar
t
i
c
l
e
h
i
s
t
or
y
:
R
e
c
e
i
v
e
d
F
e
b
1
1
,
2
020
R
e
v
i
s
e
d
A
pr
1
5
,
2020
A
c
c
e
pt
e
d
A
p
r
29
,
2020
T
he
c
o
nt
i
nuo
us
f
l
o
ur
i
s
hi
ng
of
b
o
a
r
di
ng
s
c
ho
o
l
s
i
n
M
a
l
a
y
s
i
a
ha
v
e
pr
o
m
pt
e
d
a
ne
e
d
f
o
r
t
he
de
v
e
l
o
pm
e
n
t
o
f
o
ut
i
ng
s
y
s
t
e
m
s
t
h
a
t
c
a
n
m
a
n
a
g
e
t
he
o
ut
i
ng
a
c
t
i
v
i
t
i
e
s
o
f
s
t
ude
n
t
s
w
h
i
l
s
t
e
n
s
ur
i
ng
t
he
i
r
s
a
f
e
t
y
a
nd
s
e
c
ur
i
t
y
.
I
n
t
hi
s
pr
o
j
e
c
t
,
a
s
m
a
r
t
o
ut
i
ng
a
n
d
a
t
t
e
nda
nc
e
s
y
s
t
e
m
t
h
a
t
a
c
c
ur
a
t
e
l
y
r
e
c
o
r
ds
t
h
e
de
t
a
i
l
s
o
f
a
l
l
s
t
ud
e
n
t
s
a
nd
t
he
i
r
r
e
s
pe
c
t
i
v
e
o
ut
i
ng
a
c
t
i
v
i
t
i
e
s
i
s
p
r
o
po
s
e
d.
T
h
e
d
e
v
e
l
o
pm
e
nt
o
f
t
hi
s
s
y
s
t
e
m
v
i
a
t
he
X
A
M
P
P
pl
a
t
f
o
r
m
a
l
l
o
w
s
t
he
i
nf
o
r
m
a
t
i
o
n
r
e
g
a
r
d
i
ng
s
t
ud
e
n
t
s
‟
o
ut
i
ng
a
c
t
i
v
i
t
i
e
s
t
o
be
s
a
v
e
d
i
n
a
n
o
nl
i
ne
d
a
t
a
ba
s
e
,
w
h
e
r
e
by
i
t
i
s
c
l
o
s
e
l
y
m
o
ni
t
o
r
e
d
a
nd
m
a
n
a
g
e
d
by
t
he
s
c
ho
o
l
a
ut
ho
r
i
t
i
e
s
.
S
t
u
d
e
nt
s
w
ho
a
t
t
e
nd
a
u
t
ho
r
i
z
e
d
o
ut
i
ng
a
c
t
i
v
i
t
i
e
s
ha
v
e
t
o
s
c
a
n
t
h
e
i
r
s
t
ude
n
t
I
D
c
a
r
d
a
t
a
n
R
F
I
D
r
e
a
de
r
w
h
i
c
h
i
s
i
n
s
t
a
l
l
e
d
a
t
t
h
e
m
a
i
n
e
n
t
r
a
nc
e
o
f
t
he
s
c
hoo
l
c
o
m
po
und,
w
he
r
e
t
h
e
i
nf
o
r
m
a
t
i
o
n
r
e
g
a
r
d
i
ng
t
he
i
r
d
e
pa
r
t
ur
e
a
n
d
a
r
r
i
v
a
l
t
i
m
e
a
t
t
he
s
c
ho
o
l
w
i
l
l
be
t
r
a
n
s
m
i
t
t
e
d
v
i
a
a
n
A
r
du
i
no
c
o
nt
r
o
l
l
e
r
t
o
t
he
da
t
a
b
a
s
e
.
A
t
t
he
s
a
m
e
t
i
m
e
,
t
hi
s
s
y
s
t
e
m
s
e
nd
s
a
no
t
i
f
i
c
a
t
i
o
n
i
n
t
he
f
o
r
m
o
f
a
W
ha
t
s
A
pp
m
e
s
s
a
g
e
t
o
t
he
pho
ne
num
b
e
r
o
f
a
l
l
t
he
s
t
ude
nt
s
‟
p
a
r
e
n
t
s
.
T
he
s
y
s
t
e
m
i
s
a
w
e
l
l
-
r
o
unde
d
a
ppr
o
a
c
h
t
o
a
d
e
qua
t
e
l
y
m
a
na
g
e
t
he
o
ut
i
ng
a
c
t
i
v
i
t
i
e
s
o
f
s
t
ud
e
n
t
s
a
s
e
a
c
h
a
c
t
i
v
i
t
y
ha
s
t
o
be
r
e
g
i
s
t
e
r
e
d
be
f
o
r
e
h
a
nd
w
i
t
h
i
t
s
i
m
pl
e
m
e
n
t
a
t
i
o
n
u
nde
r
g
o
i
ng
s
t
r
i
c
t
m
o
ni
t
o
r
i
ng
by
t
he
s
c
ho
o
l
a
u
t
ho
r
i
t
i
e
s
.
Ke
y
w
or
d
s
:
A
r
du
i
n
o
c
o
n
t
r
o
l
l
e
r
O
nl
i
n
e
d
a
t
a
b
a
s
e
O
ut
i
n
g
s
y
s
t
e
m
s
R
F
ID
r
e
a
de
r
S
a
f
e
t
y
a
n
d
s
e
c
ur
i
t
y
W
h
a
t
s
A
pp
m
e
s
s
a
ge
X
A
M
P
P
pl
a
t
f
o
r
m
C
opy
r
i
gh
t
©
2020
I
n
s
t
i
t
ut
e
o
f
A
dv
anc
e
d
E
ng
i
ne
e
r
i
ng
and
S
c
i
e
nc
e
.
A
l
l
r
i
gh
t
s
r
e
s
e
r
v
e
d
.
Cor
r
e
s
pon
di
n
g
Au
t
h
or
:
M
a
t
t
h
e
w
K
h
o
o
K
a
h
W
e
n,
D
e
pa
rt
m
e
n
t
o
f
E
l
e
c
t
ri
c
a
l
a
nd
E
l
e
c
t
r
o
ni
c
E
ngi
n
e
e
ri
n
g
,
U
n
i
v
e
r
s
i
t
i
T
u
n
H
us
s
e
i
n
O
nn
M
a
l
a
y
s
i
a
,
86400
P
a
r
i
t
R
a
j
a
,
J
o
h
o
r
,
M
a
l
a
y
s
i
a
.
E
m
a
i
l
:
m
a
t
t
h
e
w
kh
o
o
950318@
gm
a
i
l
.
c
o
m
1.
I
N
TR
O
D
U
C
TI
O
N
N
ow
a
da
y
s
,
t
h
e
i
s
s
ue
o
f
t
h
e
s
a
f
e
t
y
a
n
d
s
e
c
ur
i
t
y
of
s
t
ude
nt
s
r
e
s
i
di
n
g
i
n
b
o
a
r
di
ng
s
c
h
o
o
l
s
h
a
s
b
e
c
o
m
e
a
m
a
j
o
r
c
o
n
c
e
rn,
p
a
r
t
i
c
ul
a
rl
y
t
o
t
h
e
i
r
pa
r
e
n
t
s
w
h
o
a
r
e
u
na
b
l
e
t
o
m
e
e
t
o
r
c
o
m
m
u
n
i
c
a
t
e
w
i
t
h
t
h
e
m
f
a
c
e
-
to
-
f
a
c
e
o
n
a
da
i
l
y
b
a
s
i
s
.
P
a
rt
i
e
s
s
uc
h
a
s
t
h
e
M
i
ni
s
t
r
y
of
H
um
a
n
R
e
s
o
ur
c
e
s
,
t
h
e
D
e
pa
r
t
m
e
n
t
o
f
O
c
c
upa
t
i
o
na
l
S
a
f
e
t
y
a
n
d
H
e
a
l
t
h
(D
O
S
H
)
ha
v
e
ur
ge
d
f
o
r
s
c
h
o
o
l
s
a
l
l
a
r
o
und
t
h
e
na
t
i
o
n
t
o
p
r
o
v
i
de
a
s
a
f
e
pl
a
c
e
fo
r
s
t
ude
nt
s
t
o
l
e
a
rn
a
n
d
s
t
udy
,
m
o
r
e
p
r
o
m
i
n
e
n
t
l
y
t
hr
o
ugh
i
t
s
i
m
p
l
e
m
e
nt
e
d
“
O
S
H
i
n
S
c
h
o
o
l
P
r
o
gra
m
m
e
”
i
n
i
t
s
e
f
fo
r
t
s
t
o
ra
i
s
e
s
a
f
e
t
y
a
n
d
h
e
a
l
t
h
a
w
a
r
e
n
e
s
s
a
m
o
n
g
a
l
l
t
h
e
s
c
h
o
o
l
s
[1].
In
a
ddi
t
i
o
n
t
o
t
h
i
s
,
t
h
e
m
a
i
n
p
r
o
b
l
e
m
of
l
o
w
a
t
t
e
n
d
a
n
c
e
l
e
ve
l
s
due
t
o
f
r
e
que
n
t
t
rua
n
c
y
a
m
o
n
g
s
c
h
o
o
l
s
t
ude
n
t
s
h
a
v
e
a
l
s
o
b
e
c
o
m
e
a
m
a
j
o
r
t
a
l
ki
ng
po
i
n
t
i
n
t
h
e
m
e
di
a
,
w
i
t
h
c
e
rt
a
i
n
s
c
h
o
o
l
s
i
n
v
o
l
v
i
n
g
po
l
i
c
e
l
i
a
i
s
o
n
o
f
f
i
c
e
r
s
t
o
h
e
l
p
d
i
f
f
us
e
t
h
e
pr
o
b
l
e
m
a
t
i
c
s
i
t
u
a
t
i
o
n
o
f
t
r
ua
n
c
y
a
m
o
n
g
t
h
e
s
e
s
c
h
o
o
l
s
t
ude
n
t
s
,
p
a
rt
i
c
ul
a
r
l
y
e
xh
i
b
i
t
e
d
b
y
t
h
e
s
c
h
o
o
l
s
i
n
t
h
e
S
e
rda
n
g
d
i
s
t
r
i
c
t
[2]
.
M
o
r
e
ov
e
r
,
t
h
e
m
a
j
o
r
t
r
e
n
d
o
f
o
ut
i
n
g
a
c
t
i
v
i
t
i
e
s
a
m
o
ng
b
oa
r
di
ng
s
c
h
o
o
l
s
t
ude
n
t
s
h
a
s
l
e
d
t
o
t
h
e
i
nn
o
v
a
t
i
o
n
o
f
v
a
r
i
o
us
s
t
a
t
e
-
of
-
t
h
e
-
a
r
t
o
ut
i
n
g
s
y
s
t
e
m
s
w
i
t
hi
n
bo
a
r
d
i
n
g
s
c
h
o
o
l
s
i
n
M
a
l
a
y
s
i
a
t
h
a
t
i
n
c
o
rpo
r
a
t
e
t
h
e
us
e
of
t
h
e
I
n
t
e
rn
e
t
o
f
T
h
i
n
gs
(Io
T
).
T
h
e
s
e
a
ut
o
m
a
t
e
d
o
ut
i
n
g
s
y
s
t
e
m
s
a
r
e
c
a
pa
b
l
e
o
f
e
s
t
a
b
l
i
s
hi
n
g
a
m
o
r
e
e
ffe
c
t
i
ve
pl
a
t
f
o
r
m
f
o
r
s
t
ude
n
t
s
t
o
r
e
g
i
s
t
e
r
t
h
e
i
r
o
ut
i
ng
a
c
t
i
v
i
t
i
e
s
w
i
t
h
t
h
e
s
c
h
o
o
l
a
ut
h
o
r
i
t
i
e
s
,
w
h
i
l
s
t
p
r
o
v
i
di
n
g
a
n
o
n
l
i
n
e
da
t
a
b
a
s
e
fo
r
t
h
e
i
r
a
c
t
i
v
i
t
i
e
s
t
o
b
e
m
a
n
a
ge
d
[3]
.
In
a
d
di
t
i
o
n,
t
h
e
s
e
s
y
s
t
e
m
s
a
r
e
a
b
l
e
t
o
r
e
c
o
r
d
t
h
e
a
t
t
e
n
d
a
n
c
e
of
s
t
ude
n
t
s
a
nd
n
o
t
i
fy
t
h
e
pa
r
e
n
t
s
o
f
t
h
e
i
r
c
h
i
l
d
r
e
n
‟s
m
o
v
e
m
e
n
t
s
t
hr
o
ug
h
a
n
Io
T
-
b
a
s
e
d
a
ppl
i
c
a
t
i
o
n
i
n
t
h
e
i
r
p
h
o
n
e
s
.
Evaluation Warning : The document was created with Spire.PDF for Python.
IS
S
N
:
2502
-
4752
In
do
n
e
s
i
a
n
J
E
l
e
c
E
ng
&
Co
m
p
S
c
i
,
V
o
l
.
20
,
N
o
.
2
,
N
o
v
e
m
be
r
20
20
:
10
53
-
10
61
1054
T
h
e
de
ve
l
o
pm
e
n
t
o
f
t
h
e
s
m
a
rt
o
ut
i
n
g
a
n
d
a
t
t
e
n
d
a
n
c
e
s
y
s
t
e
m
i
n
t
h
i
s
p
r
o
j
e
c
t
a
s
a
pr
o
po
s
e
d
s
o
l
ut
i
o
n
t
o
t
h
e
r
e
f
e
r
r
e
d
p
r
o
b
l
e
m
s
a
r
e
e
xpe
c
t
e
d
t
o
c
o
n
t
ri
b
ut
e
t
o
t
h
e
e
n
ha
n
c
e
m
e
n
t
o
f
t
h
e
s
a
f
e
t
y
a
n
d
s
e
c
ur
i
t
y
of
bo
a
r
d
i
n
g
s
c
h
o
o
l
s
t
ude
n
t
s
.
T
h
e
s
y
s
t
e
m
a
t
i
c
r
e
gi
s
t
ra
t
i
o
n
o
f
o
ut
i
n
g
a
c
t
i
v
i
t
i
e
s
a
n
d
da
i
l
y
a
t
t
e
n
da
n
c
e
e
n
s
u
r
e
s
t
ha
t
t
h
e
s
t
ude
nt
s
‟
m
o
ve
m
e
n
t
s
a
r
o
und
t
h
e
s
c
h
o
o
l
c
o
m
po
un
d
a
r
e
c
l
o
s
e
l
y
m
o
n
i
t
o
r
e
d
a
nd
a
n
y
t
r
ua
n
c
y
a
t
t
e
m
p
t
b
y
s
t
ude
n
t
s
a
r
e
i
m
m
e
di
a
t
e
l
y
c
a
pt
ur
e
d
by
t
h
e
s
c
h
o
o
l
m
a
n
a
ge
m
e
nt
.
I
n
a
ddi
t
i
o
n,
pa
r
e
nt
s
c
a
n
ke
e
p
up
t
o
da
t
e
w
i
t
h
t
h
e
i
r
c
h
i
l
d
r
e
n
‟s
w
h
e
r
e
a
b
o
ut
s
t
hr
o
ug
h
t
h
e
n
o
t
i
f
i
c
a
t
i
o
n
s
s
e
nt
t
o
t
h
e
i
r
p
h
o
n
e
s
,
w
h
i
c
h
a
l
l
o
w
s
t
h
e
m
t
o
v
i
r
t
ua
l
l
y
m
o
n
i
t
o
r
t
h
e
i
r
c
h
i
l
d
r
e
n
w
i
t
h
o
ut
t
h
e
n
e
e
d
o
f
ph
y
s
i
c
a
l
c
o
n
t
a
c
t
.
T
h
e
p
r
o
po
s
e
d
s
y
s
t
e
m
i
s
ge
n
e
ra
l
l
y
r
e
f
l
e
c
t
i
v
e
o
f
a
nu
m
b
e
r
o
f
r
e
l
a
t
e
d
p
r
o
j
e
c
t
s
t
ha
t
e
m
pl
o
y
t
h
e
s
a
m
e
w
e
b
-
b
a
s
e
d
s
y
s
t
e
m
de
s
i
g
ns
t
ha
t
p
r
o
duc
e
s
i
m
i
l
a
r
n
o
v
e
l
c
o
nt
ri
b
ut
i
o
ns
,
i
n
c
l
ud
i
ng
t
h
e
p
r
o
j
e
c
t
s
de
v
e
l
o
pe
d
i
n
[
4
-
7
]
w
h
e
re
t
h
e
a
p
pl
i
c
a
t
i
o
n
o
f
o
ut
i
ng
a
c
t
i
v
i
t
i
e
s
f
o
r
b
o
a
rd
i
ng
s
c
h
o
o
l
s
t
ude
nt
s
i
s
a
l
s
o
c
a
rri
e
d
o
u
t
v
i
a
a
n
o
nl
i
n
e
p
l
a
t
f
o
rm
t
ha
t
a
l
l
o
w
s
t
h
e
s
c
h
o
o
l
a
u
t
h
o
ri
t
i
e
s
t
o
m
a
na
ge
a
nd
v
i
e
w
e
a
c
h
a
c
t
i
v
i
t
y
.
H
ow
e
v
e
r
,
a
n
a
dde
d
n
o
v
e
l
t
y
o
f
t
h
e
p
r
o
po
s
e
d
s
y
s
t
e
m
i
s
i
t
s
o
pe
n
a
c
c
e
s
s
i
b
i
l
i
t
y
t
o
t
h
e
s
t
ude
nt
s
‟
pa
re
nt
s
w
hi
c
h
a
l
l
o
w
s
t
he
m
t
o
m
o
ni
t
o
r
t
he
i
r
c
hi
l
d
r
e
n‟
s
a
c
t
i
v
i
t
i
e
s
o
n
a
re
g
u
l
a
r
b
a
s
i
s
,
w
hi
c
h
i
s
a
f
e
a
t
u
r
e
t
ha
t
i
s
a
b
s
e
nt
i
n
o
t
h
e
r
re
l
e
v
a
nt
p
r
o
j
e
c
t
s
de
v
e
l
o
pe
d
i
n
[
8
-
10
]
.
2.
R
ES
EA
R
C
H
M
ET
H
O
D
T
h
i
s
p
r
o
po
s
e
d
o
ut
i
n
g
a
n
d
a
t
t
e
n
d
a
n
c
e
s
y
s
t
e
m
i
s
de
s
i
gn
e
d
i
n
r
e
g
a
r
ds
t
o
t
h
e
s
a
f
e
t
y
a
n
d
s
e
c
u
r
i
t
y
of
bo
a
r
d
i
n
g
s
c
h
o
o
l
s
t
ude
nt
s
.
A
l
l
t
hi
n
gs
c
o
n
s
i
de
r
e
d,
t
h
e
c
o
m
pl
e
t
e
s
y
s
t
e
m
t
ha
t
c
o
n
s
i
s
t
s
o
f
a
l
l
t
h
e
ha
r
dw
a
r
e
a
n
d
s
of
t
w
a
r
e
us
e
d
a
s
w
e
l
l
a
s
t
h
e
i
nt
e
ra
c
t
i
o
n
b
e
t
w
e
e
n
t
h
e
m
a
r
e
i
l
l
u
s
t
ra
t
e
d
i
n
t
h
e
f
o
l
l
o
w
i
n
g
s
e
c
t
i
o
n
s
.
2.
1
.
Wo
r
k
fl
o
w
d
i
ag
r
am
F
i
rs
t
a
nd
f
o
r
e
m
o
s
t
,
t
h
e
L
i
qu
i
d
C
r
y
s
t
a
l
D
i
s
p
l
a
y
(L
CD
)
,
R
e
a
l
T
i
m
e
C
l
o
c
k
(R
T
C)
a
nd
R
C
-
52
2
R
F
I
D
r
e
a
de
r
a
r
e
i
ns
t
a
l
l
e
d
a
s
o
n
e
e
nt
i
t
y
a
t
t
h
e
s
c
h
o
o
l
e
nt
ra
nc
e
a
nd
s
t
ude
nt
s
a
r
e
p
r
o
v
i
de
d
w
i
t
h
a
pe
r
s
o
na
l
R
F
ID
t
a
g
o
r
c
a
rds
t
ha
t
c
o
nt
a
i
n
a
u
ni
q
ue
s
e
ri
a
l
i
de
nt
i
f
i
c
a
t
i
o
n
nu
m
b
e
r
(
ID
)
.
W
he
n
s
t
u
de
nt
s
a
p
p
l
y
f
o
r
o
u
t
i
ng
a
c
t
i
v
i
t
i
e
s
,
t
h
e
s
c
h
o
o
l
m
a
na
ge
m
e
nt
re
g
i
s
t
e
rs
t
h
e
i
r
I
D
i
n
t
he
da
t
a
b
a
s
e
t
hro
u
g
h
a
n
o
nl
i
n
e
w
e
b
p
a
ge
i
n
t
h
e
X
A
M
P
P
da
t
a
b
a
s
e
a
nd
f
o
r
w
a
rds
a
W
ha
t
s
A
p
p
m
e
s
s
a
ge
t
o
t
he
p
h
o
n
e
nu
m
b
e
r
o
f
t
he
i
r
p
a
r
e
nt
s
.
S
t
u
de
nt
s
a
re
t
h
e
n
pe
rm
i
t
t
e
d
t
o
a
t
t
e
nd
t
h
e
s
e
a
c
t
i
v
i
t
i
e
s
a
nd
a
r
e
re
q
u
i
r
e
d
t
o
s
c
a
n
t
h
e
i
r
ID
o
n
t
he
r
e
a
de
r
a
s
t
h
e
y
l
e
a
v
e
t
h
e
s
c
h
o
o
l
c
o
m
po
u
nd
,
w
h
e
r
e
t
he
L
C
D
i
s
p
r
o
g
ra
m
m
e
d
t
o
di
s
p
l
a
y
a
n
„A
pp
r
o
v
e
d
O
u
t
i
ng‟
m
e
s
s
a
ge
a
n
d
t
he
R
T
C
r
e
c
o
rds
do
w
n
t
he
c
h
e
c
ko
u
t
t
i
m
e
o
f
s
t
ude
nt
s
.
T
hi
s
i
n
f
o
rm
a
t
i
o
n
i
s
t
ra
ns
m
i
t
t
e
d
v
i
a
t
he
W
i
-
F
i
m
o
d
ul
e
a
nd
up
d
a
t
e
d
i
n
t
h
e
da
t
a
b
a
s
e
f
o
r
t
he
s
t
u
de
nt
s
‟
a
c
t
i
v
i
t
i
e
s
t
o
b
e
m
o
ni
t
o
r
e
d
b
y
t
h
e
s
c
h
o
o
l
m
a
na
ge
m
e
nt
.
T
h
e
p
r
o
c
e
s
s
i
s
r
e
pe
a
t
e
d
w
h
e
n
t
he
s
t
u
de
nt
c
h
e
c
ks
i
n
a
f
t
e
r
r
e
t
u
rni
ng
f
r
o
m
hi
s
o
u
t
i
ng
a
c
t
i
v
i
t
y
,
w
h
e
re
b
y
t
h
e
c
h
e
c
k
-
i
n
t
i
m
e
i
s
u
pd
a
t
e
d
i
n
t
h
e
d
a
t
a
b
a
s
e
a
nd
t
h
e
L
C
D
di
s
p
l
a
y
s
„A
p
p
r
o
v
e
d
E
n
t
r
y
‟
.
T
he
w
o
rkf
l
o
w
d
i
a
g
ra
m
o
f
t
h
e
o
u
t
i
ng
a
nd
a
t
t
e
n
d
a
nc
e
s
y
s
t
e
m
i
s
s
h
o
w
n
i
n
F
i
gu
re
1
.
F
i
gu
r
e
1
.
W
o
r
kf
l
o
w
di
a
g
r
a
m
o
f
t
h
e
s
m
a
rt
o
ut
i
ng
a
n
d
a
t
t
e
n
da
n
c
e
s
y
s
t
e
m
Evaluation Warning : The document was created with Spire.PDF for Python.
In
do
n
e
s
i
a
n
J
E
l
e
c
E
ng
&
Co
m
p
S
c
i
IS
S
N
:
2502
-
4752
A
r
dui
no
bas
e
d
out
i
ng
and
at
t
e
n
danc
e
s
y
s
t
e
m
f
or
boar
d
i
ng
s
c
hool
s
t
ud
e
nt
s
(
Mat
t
h
e
w
Khoo
Kah
W
e
n
)
1055
2.
3
.
I
m
p
l
e
m
e
n
tati
o
n
o
f
th
e
o
u
ti
n
g
an
d
atte
n
d
an
c
e
s
ys
t
e
m
T
h
i
s
s
e
c
t
i
o
n
r
e
v
i
e
w
s
a
l
l
t
h
e
i
m
po
r
t
a
n
t
e
l
e
m
e
n
t
s
i
n
v
o
l
ve
d
i
n
t
h
e
i
m
p
l
e
m
e
n
t
a
t
i
o
n
o
f
t
h
e
pr
o
po
s
e
d
s
m
a
r
t
o
ut
i
ng
a
n
d
a
t
t
e
n
d
a
n
c
e
s
y
s
t
e
m
.
T
h
e
o
ve
r
a
l
l
a
r
c
h
i
t
e
c
t
ur
e
of
t
h
e
s
y
s
t
e
m
a
s
w
e
l
l
a
s
t
h
e
i
nt
e
ra
c
t
i
o
n
b
e
t
w
e
e
n
t
h
e
ha
r
dw
a
r
e
a
nd
s
o
f
t
w
a
r
e
c
o
m
po
n
e
n
t
s
a
r
e
i
l
l
us
t
ra
t
e
d
i
n
t
he
b
l
o
c
k
di
a
gra
m
s
h
o
w
n
i
n
F
i
gu
r
e
2
.
T
h
i
s
b
l
o
c
k
di
a
g
ra
m
i
s
i
n
d
i
c
a
t
i
v
e
of
t
h
e
ge
n
e
ra
l
f
u
n
c
t
i
o
n
s
o
f
t
h
e
s
y
s
t
e
m
t
h
a
t
w
e
r
e
pr
e
v
i
o
us
l
y
h
i
g
h
l
i
g
ht
e
d
i
n
t
h
e
w
o
r
kf
l
ow
di
a
g
ra
m
.
F
i
gu
r
e
2
.
B
l
o
c
k
di
a
g
r
a
m
o
f
t
h
e
s
m
a
r
t
o
ut
i
n
g
a
n
d
a
t
t
e
n
da
n
c
e
s
y
s
t
e
m
B
a
s
e
d
o
n
t
he
b
l
o
c
k
d
i
a
g
ra
m
i
l
l
u
s
t
r
a
t
e
d
i
n
F
i
g
u
re
4
,
t
he
A
rd
u
i
no
M
e
g
a
2
5
6
0
i
s
u
s
e
d
t
o
i
nt
e
rc
o
n
ne
c
t
a
l
l
t
he
ha
rd
w
a
re
c
o
m
po
ne
nt
s
i
n
t
o
a
s
i
ng
l
e
e
nt
i
t
y
d
ue
t
o
t
he
p
re
s
e
nc
e
m
a
ny
d
i
g
i
t
a
l
i
np
u
t
a
nd
o
u
t
p
u
t
p
i
ns
o
n
t
hi
s
b
o
a
rd
.
P
ri
o
r
re
s
e
a
rc
h
t
o
t
hi
s
p
ro
j
e
c
t
s
ho
w
e
d
t
ha
t
o
t
he
r
b
o
a
rd
s
s
u
c
h
a
s
t
he
A
R
M
M
b
e
d
L
P
C
1
7
6
8
M
i
c
r
o
c
o
nt
ro
l
l
e
r
i
s
a
l
s
o
a
p
p
l
i
c
a
b
l
e
b
u
t
t
he
A
rd
u
i
no
M
e
g
a
2
5
6
0
w
a
s
u
l
t
i
m
a
t
e
l
y
c
ho
s
e
n
d
u
e
t
o
t
he
e
a
s
e
o
f
o
p
e
ra
t
i
o
n
o
f
t
he
b
o
a
rd
v
i
a
a
n
o
p
e
n
-
s
o
u
rc
e
I
D
E
t
h
a
t
c
a
n
b
e
re
a
d
i
l
y
do
w
nl
o
a
d
e
d
i
nt
o
a
c
o
m
p
u
t
e
r,
w
h
e
re
i
t
i
s
f
re
e
o
f
c
ha
rg
e
[
1
1
]
.
M
e
a
nw
hi
l
e
,
t
he
R
F
I
D
R
C
-
522
re
a
d
e
r
a
nd
t
a
g
a
re
c
o
l
l
e
c
t
i
v
e
l
y
us
e
d
t
o
ge
t
he
r
w
i
t
h
t
he
A
rd
u
i
no
b
o
a
rd
.
T
he
s
m
a
l
l
s
i
z
e
R
F
I
D
c
hi
p
c
o
nt
a
i
ne
d
i
n
t
he
t
a
g
m
a
k
e
s
i
t
a
p
p
l
i
c
a
b
l
e
a
s
a
ha
nd
-
he
l
d
d
e
v
i
c
e
f
o
r
s
t
u
d
e
nt
s
t
o
c
a
rry
i
t
a
ro
u
nd
e
a
s
i
l
y
[
1
2
]
,
w
hi
l
e
t
he
S
e
ri
a
l
P
e
r
i
p
he
ra
l
I
nt
e
rf
a
c
e
(
S
P
I
)
p
ro
t
o
c
o
l
c
o
nne
c
t
i
o
n
o
f
t
he
re
a
d
e
r
a
l
l
o
w
s
i
t
t
o
c
o
m
m
u
ni
c
a
t
e
e
a
s
i
l
y
w
i
t
h
t
he
A
rd
u
i
no
b
o
a
rd
,
m
a
k
i
ng
t
he
t
ra
ns
m
i
s
s
i
o
n
o
f
i
nf
o
rm
a
t
i
o
n
f
ro
m
t
he
R
F
I
D
t
a
g
a
nd
re
a
d
e
r
t
o
t
he
b
o
a
rd
m
o
re
s
e
a
m
l
e
s
s
[
1
3
]
.
A
l
s
o
,
t
he
t
a
g
i
t
s
e
l
f
i
s
a
b
l
e
t
o
i
d
e
nt
i
f
y
s
t
ro
ng
s
i
g
na
l
s
f
ro
m
t
he
re
a
d
e
r
–
a
l
l
o
w
i
ng
i
t
t
o
b
e
a
u
t
o
m
a
t
i
c
a
l
l
y
re
c
o
g
ni
z
a
b
l
e
a
nd
t
r
a
c
e
a
b
l
e
a
ny
w
he
re
[
1
4
-
1
6
]
.
T
h
i
s
w
i
l
l
e
na
b
l
e
t
he
R
F
I
D
t
a
g
(
o
r
c
a
rd
)
he
l
d
by
s
t
u
d
e
nt
s
t
o
b
e
e
a
s
i
l
y
s
c
a
n
ne
d
b
y
t
he
re
a
d
e
r
w
he
n
t
he
s
t
u
d
e
nt
l
e
a
v
e
s
o
r
e
nt
e
rs
t
he
s
c
ho
o
l
c
o
m
po
u
nd
.
F
u
rt
he
r
m
o
re
,
t
he
L
C
D
u
s
e
s
a
n
A
rd
u
i
no
I
2
C
S
e
ri
a
l
1
6
x
2
d
i
s
p
l
a
y
t
o
p
ri
n
t
t
he
p
re
s
c
ri
b
e
d
m
e
s
s
a
g
e
s
o
n
i
t
s
s
c
re
e
n
w
he
n
a
s
t
u
d
e
nt
s
c
a
ns
hi
s
c
a
rd
o
n
t
he
R
F
I
D
re
a
d
e
r.
T
hi
s
t
y
pe
o
f
L
C
D
m
o
d
u
l
e
i
s
w
i
de
l
y
u
s
e
d
i
n
c
i
rc
u
i
t
i
m
p
l
e
m
e
nt
a
t
i
o
ns
d
u
e
t
o
i
t
s
i
ne
x
p
e
ns
i
v
e
na
t
u
re
a
nd
s
i
m
p
l
i
c
i
t
y
o
f
p
ro
g
ra
m
m
i
ng
,
a
s
w
e
l
l
a
s
b
e
i
ng
a
b
l
e
t
o
d
i
s
p
l
a
y
d
i
f
f
e
re
nt
t
y
pe
s
o
f
s
p
e
c
i
a
l
,
t
a
i
l
o
re
d
c
ha
r
a
c
t
e
rs
a
nd
a
ni
m
a
t
i
o
ns
[
1
7
]
.
A
t
t
he
s
a
m
e
t
i
m
e
,
t
he
e
x
a
c
t
c
he
c
k
o
u
t
a
nd
c
he
c
k
-
i
n
t
i
m
e
o
f
t
he
s
t
u
d
e
nt
i
s
re
c
o
rd
e
d
b
y
t
he
R
e
a
l
-
T
i
m
e
C
l
o
c
k
(R
T
C
)
w
hi
c
h
ru
ns
o
n
a
D
S
1
3
0
7
m
o
d
u
l
e
.
T
he
m
a
i
n
re
a
s
o
n
f
o
r
t
he
s
e
l
e
c
t
i
o
n
o
f
t
he
D
S
1
3
0
7
i
s
t
he
c
a
p
a
b
i
l
i
t
y
o
f
t
hi
s
m
o
d
u
l
e
t
o
k
e
e
p
t
ra
c
k
o
f
t
he
c
u
rre
n
t
d
a
t
e
a
nd
e
x
a
c
t
t
i
m
e
,
a
s
w
e
l
l
a
s
t
he
l
o
ng
b
a
t
t
e
ry
l
i
f
e
o
f
t
he
l
i
t
hi
u
m
c
o
i
l
c
e
l
l
w
i
t
h
i
n
t
he
R
T
C
[
1
8
]
.
M
o
re
o
v
e
r,
t
he
E
S
P
8
2
6
6
W
i
-
F
i
m
o
d
u
l
e
a
c
t
s
a
s
a
c
e
nt
r
a
l
p
o
i
nt
o
f
c
o
m
m
u
ni
c
a
t
i
o
n
b
e
t
w
e
e
n
t
he
c
o
m
p
o
ne
nt
s
o
n
t
he
A
rd
u
i
no
b
o
a
rd
a
nd
t
he
o
nl
i
ne
X
A
M
P
P
d
a
t
a
b
a
s
e
,
d
u
e
t
o
t
he
s
m
a
l
l
-
s
i
z
e
d
na
t
u
re
o
f
i
t
s
c
hi
p
a
nd
i
t
s
a
b
i
l
i
t
y
t
o
p
ro
v
i
d
e
a
n
a
l
l
-
ro
u
nd
s
o
l
u
t
i
o
n
f
o
r
t
he
p
u
rp
o
s
e
o
f
W
i
-
F
i
ne
t
w
o
rk
i
ng
a
nd
a
c
c
e
s
s
t
o
t
he
b
o
a
rd
[
1
9
]
.
I
t
c
a
n
a
l
s
o
ho
s
t
a
n
a
p
p
l
i
c
a
t
i
o
n
a
nd
o
f
f
l
o
a
d
a
l
l
f
u
nc
t
i
o
ns
p
ro
v
i
d
e
d
b
y
W
i
-
F
i
ne
t
w
o
rk
i
ng
f
ro
m
a
n
a
p
p
l
i
c
a
t
i
o
n
p
ro
c
e
s
s
o
r
t
ha
t
i
s
s
e
p
a
ra
t
e
l
y
l
o
c
a
t
e
d
[
2
0
]
.
T
hi
s
t
ra
i
t
a
l
l
o
w
s
i
t
t
o
s
e
a
m
l
e
s
s
l
y
u
p
l
o
a
d
a
l
l
t
he
d
a
t
a
o
b
t
a
i
ne
d
f
ro
m
t
he
ha
rd
w
a
re
c
o
m
p
o
ne
nt
s
o
n
t
he
A
rd
u
i
no
b
o
a
rd
t
o
t
he
X
A
M
P
P
d
a
t
a
b
a
s
e
,
w
hi
c
h
i
nc
l
u
d
e
t
he
s
t
u
d
e
nt
I
D
i
nf
o
rm
a
t
i
o
n
a
nd
t
he
c
he
c
ko
u
t
o
r
c
he
c
k
-
i
n
t
i
m
e
a
s
s
c
a
n
ne
d
b
y
t
he
R
F
I
D
re
a
d
e
r
a
nd
R
T
C
re
s
p
e
c
t
i
v
e
l
y
.
O
n
t
h
e
o
t
h
e
r
ha
n
d
,
t
h
e
X
A
M
P
P
de
v
e
l
o
pm
e
n
t
t
o
o
l
i
s
us
e
d
fo
r
t
h
e
s
t
o
r
a
ge
o
f
t
h
e
s
t
ude
n
t
o
ut
i
ng
i
n
f
o
r
m
a
t
i
o
n
a
f
t
e
r
i
t
i
s
upl
o
a
de
d
f
r
o
m
t
h
e
A
r
dui
n
o
b
o
a
r
d
t
o
t
h
e
X
A
M
P
P
da
t
a
b
a
s
e
.
I
t
i
s
a
l
s
o
us
e
d
t
o
s
e
n
d
a
n
a
ut
o
-
ge
n
e
r
a
t
e
d
W
h
a
t
s
A
pp
m
e
s
s
a
ge
t
o
t
h
e
p
a
r
e
nt
s
‟
m
o
b
i
l
e
ph
o
n
e
s
a
f
t
e
r
a
n
o
ut
i
n
g
a
c
t
i
v
i
t
y
h
a
s
b
e
e
n
a
pp
r
o
v
e
d
a
n
d
r
e
gi
s
t
e
r
e
d
by
t
h
e
s
c
h
o
o
l
a
ut
h
o
r
i
t
i
e
s
.
T
h
e
o
n
l
i
n
e
w
e
b
pa
ge
s
us
e
d
fo
r
t
h
e
r
e
gi
s
t
ra
t
i
o
n
a
nd
m
o
n
i
t
o
r
i
ng
o
f
Evaluation Warning : The document was created with Spire.PDF for Python.
IS
S
N
:
2502
-
4752
In
do
n
e
s
i
a
n
J
E
l
e
c
E
ng
&
Co
m
p
S
c
i
,
V
o
l
.
20
,
N
o
.
2
,
N
o
v
e
m
be
r
20
20
:
10
53
-
10
61
1056
t
h
e
s
e
o
ut
i
n
g
a
c
t
i
v
i
t
i
e
s
by
t
h
e
s
c
h
oo
l
a
ut
h
o
r
i
t
i
e
s
a
n
d
pa
r
e
n
t
s
a
r
e
de
ve
l
o
pe
d
v
i
a
a
N
o
t
e
pa
d
+
+
s
o
ur
c
e
c
o
de
e
di
t
o
r
,
w
h
e
r
e
t
h
e
H
y
pe
r
t
e
xt
P
r
e
p
r
o
c
e
s
s
o
r
(P
H
P
)
pr
o
gr
a
m
m
i
n
g
l
a
ngua
ge
i
s
us
e
d
t
o
c
o
n
s
t
r
uc
t
a
n
d
l
i
n
k
t
h
e
c
o
di
n
g
t
o
t
h
e
X
A
M
P
P
d
a
t
a
b
a
s
e
.
T
h
e
m
a
i
n
a
dv
a
nt
a
ge
of
X
A
M
P
P
i
s
t
h
e
a
b
i
l
i
t
y
fo
r
i
nt
e
r
f
a
c
e
s
a
n
d
pr
o
g
r
a
m
m
i
n
g
l
a
n
gu
a
ge
s
w
r
i
t
t
e
n
us
i
n
g
t
h
i
s
de
v
e
l
o
pm
e
n
t
t
o
o
l
t
o
b
e
t
e
s
t
e
d
us
i
n
g
a
r
e
gul
a
r
c
o
m
put
e
r
w
i
t
h
o
ut
t
h
e
n
e
e
d
f
o
r
i
n
t
e
rn
e
t
a
c
c
e
s
s
[21],
w
h
i
l
s
t
t
h
e
P
H
P
s
e
r
v
e
r
-
s
i
de
s
c
ri
pt
i
n
g
l
a
ngua
ge
e
n
a
b
l
e
s
t
h
e
o
nl
i
n
e
w
e
b
pa
ge
s
t
o
b
e
de
v
e
l
o
pe
d
e
a
s
i
l
y
[22]
.
3.
R
ES
U
LTS
A
N
D
A
N
A
L
Y
S
I
S
T
h
e
t
e
s
t
i
n
g
a
nd
a
na
l
y
s
i
s
of
r
e
s
ul
t
s
a
t
t
a
i
n
e
d
f
r
o
m
t
h
e
ha
r
dw
a
r
e
de
s
i
g
n
a
n
d
s
o
f
t
w
a
r
e
s
y
s
t
e
m
s
a
s
w
e
l
l
a
s
t
h
e
i
nt
e
gra
t
i
o
n
o
f
bo
t
h
t
h
e
s
e
f
e
a
t
ur
e
s
i
s
m
a
de
i
n
a
c
o
m
p
l
e
t
e
a
n
d
c
o
n
c
i
s
e
m
a
nn
e
r
i
n
o
rde
r
t
o
e
n
s
u
r
e
t
h
a
t
e
a
c
h
s
t
a
ge
o
f
t
h
e
r
e
s
e
a
r
c
h
i
s
o
f
r
e
l
e
v
a
n
c
e
t
o
t
h
e
pr
o
b
l
e
m
s
s
t
a
t
e
d
a
t
t
h
e
b
e
gi
nni
n
g
o
f
t
h
e
pa
pe
r.
F
u
r
t
h
e
r
di
s
c
us
s
i
o
n
o
n
t
h
e
e
f
fe
c
t
i
ve
n
e
s
s
of
e
a
c
h
of
t
h
e
de
ve
l
o
p
e
d
f
e
a
t
u
r
e
s
a
s
a
s
o
l
ut
i
o
n
t
o
t
h
e
ha
r
d
p
r
o
b
l
e
m
s
f
a
c
e
d
a
s
w
e
l
l
a
s
i
t
s
c
o
m
pa
ri
s
o
n
s
t
o
p
r
e
v
i
o
us
pr
o
j
e
c
t
s
a
r
e
a
l
s
o
m
a
de
.
T
h
i
s
e
n
s
u
r
e
s
t
ha
t
t
h
e
n
o
v
e
l
a
s
pe
c
t
s
of
t
h
e
r
e
s
ul
t
s
a
n
d
t
h
e
i
r
s
i
g
ni
f
i
c
a
n
c
e
i
n
t
e
rm
s
o
f
n
e
w
k
n
o
w
l
e
dg
e
o
r
i
m
p
r
o
v
e
m
e
nt
s
g
a
i
n
e
d
a
r
e
f
ul
l
y
a
dd
r
e
s
s
e
d
i
n
t
hi
s
p
a
pe
r
.
3.
1
.
S
o
ftw
ar
e
–
d
a
tab
as
e
a
n
d
w
e
b
p
ag
e
d
e
s
i
gn
T
h
e
d
a
t
a
b
a
s
e
i
s
i
ni
t
i
a
l
l
y
de
v
e
l
o
pe
d
t
hro
u
g
h
t
he
„p
hp
M
y
A
dm
i
n‟
a
d
m
i
ni
s
t
ra
t
i
o
n
t
o
o
l
w
ri
t
t
e
n
i
n
P
H
P
l
a
ng
ua
ge
[
2
3]
,
a
s
s
h
o
w
n
i
n
F
i
g
u
r
e
3
.
T
hi
s
d
a
t
a
b
a
s
e
i
s
a
pl
a
t
f
o
rm
t
ha
t
s
t
o
r
e
s
a
nd
o
rg
a
ni
z
e
s
t
he
i
n
f
o
rm
a
t
i
o
n
o
f
p
a
r
e
nt
s
,
t
e
a
c
he
rs
a
nd
s
t
u
de
nt
s
i
nt
o
c
o
l
u
m
ns
t
ha
t
c
o
rre
l
a
t
e
t
o
t
he
f
u
nc
t
i
o
ns
o
f
t
h
e
o
u
t
i
ng
a
nd
a
t
t
e
nd
a
n
c
e
s
y
s
t
e
m
.
F
i
gu
r
e
3
.
H
o
m
e
pa
ge
o
f
t
h
e
s
m
a
r
t
o
ut
i
n
g
a
n
d
a
t
t
e
nda
n
c
e
s
y
s
t
e
m
i
n
t
h
e
d
a
t
a
b
a
s
e
W
h
e
n
a
s
t
u
de
nt
r
e
g
i
s
t
e
r
s
f
o
r
a
ne
w
o
ut
i
ng
a
c
t
i
v
i
t
y
,
t
he
s
c
h
o
o
l
a
u
t
h
o
ri
t
i
e
s
ha
v
e
t
o
l
o
g
i
n
t
o
a
s
pe
c
i
f
i
c
„o
u
t
i
ng
a
p
p
r
o
v
a
l
‟
w
e
b
pa
ge
t
o
o
f
f
i
c
i
a
l
l
y
ke
y
i
n
t
he
o
u
t
i
ng
i
n
f
o
r
m
a
t
i
o
n
o
f
t
h
e
s
t
ude
nt
a
c
t
i
v
i
t
y
f
o
r
i
t
t
o
b
e
a
p
p
r
o
v
e
d
a
s
s
h
o
w
n
i
n
F
i
gu
re
4
.
T
h
e
s
e
de
t
a
i
l
s
a
re
t
he
n
t
ra
ns
f
e
rre
d
a
nd
d
i
s
pl
a
y
e
d
o
n
t
he
S
t
u
de
nt
s
‟
D
e
t
a
i
l
s
p
a
ge
(
s
h
o
w
n
i
n
F
i
gu
re
6
)
w
hi
c
h
e
na
b
l
e
s
t
he
e
a
s
e
o
f
m
o
ni
t
o
ri
ng
o
f
t
he
s
t
ude
nt
s
‟
a
c
t
i
v
i
t
i
e
s
b
y
t
h
e
s
c
h
o
o
l
a
u
t
h
o
ri
t
i
e
s
.
I
n
a
dd
i
t
i
o
n,
an
a
u
t
o
ge
ne
ra
t
e
d
W
ha
t
s
A
pp
m
e
s
s
a
ge
i
s
s
e
nt
t
o
t
h
e
p
h
o
ne
nu
m
b
e
r
o
f
t
he
p
a
r
e
nt
s
c
o
nt
a
i
ni
ng
t
he
na
m
e
,
I
D
a
nd
o
ut
i
ng
pu
rpo
s
e
t
h
e
i
r
c
hi
l
d
r
e
n
a
f
t
e
r
t
he
i
r
d
e
t
a
i
l
s
ha
v
e
b
e
e
n
o
f
f
i
c
i
a
l
l
y
r
e
g
i
s
t
e
r
e
d
.
T
hi
s
i
s
do
n
e
v
i
a
t
he
„c
l
i
c
k
t
o
c
ha
t
‟
f
e
a
t
u
r
e
s
h
o
w
n
i
n
F
i
gu
re
5
.
T
hi
s
f
e
a
t
u
r
e
i
s
a
dv
a
nt
a
ge
o
u
s
a
s
i
t
a
l
l
o
w
s
t
h
e
t
e
a
c
h
e
r
t
o
b
e
gi
n
a
c
ha
t
w
i
t
h
a
p
a
re
nt
w
i
t
h
o
u
t
r
e
qu
i
ri
ng
t
he
i
r
p
h
o
ne
nu
m
b
e
r
t
o
b
e
i
ni
t
i
a
l
l
y
s
a
v
e
d
i
n
t
he
p
h
o
ne
a
d
d
r
e
s
s
b
o
o
k
[2
4]
,
t
hu
s
s
a
v
i
ng
t
i
m
e
.
T
h
e
s
t
ude
nt
s
‟
de
t
a
i
l
s
pa
ge
s
t
o
r
e
a
l
l
t
h
e
o
ut
i
n
g
i
n
f
o
r
m
a
t
i
o
n
o
f
t
h
e
r
e
gi
s
t
e
r
e
d
a
c
t
i
v
i
t
i
e
s
fo
r
s
t
ude
nt
s
i
n
a
c
l
e
a
r
a
nd
o
r
g
a
n
i
z
e
d
t
a
b
l
e
,
a
s
s
h
o
w
n
i
n
F
i
gu
r
e
6.
T
hi
s
w
i
l
l
a
l
l
o
w
s
y
s
t
e
m
a
t
i
c
m
o
n
i
t
o
r
i
n
g
o
f
t
h
e
s
t
ude
nt
s
‟
o
ut
i
ng
a
c
t
i
v
i
t
i
e
s
a
n
d
m
o
v
e
m
e
n
t
s
by
t
h
e
s
c
h
o
o
l
a
ut
h
o
ri
t
i
e
s
.
L
a
s
t
b
ut
n
o
t
l
e
a
s
t
,
a
s
e
pa
r
a
t
e
w
e
b
pa
ge
i
s
de
v
e
l
o
pe
d
fo
r
pa
r
e
nt
s
a
s
s
h
o
w
n
i
n
F
i
gu
r
e
7
f
o
r
t
h
e
m
t
o
m
o
ni
t
o
r
t
h
e
i
r
c
hi
l
d
r
e
n
‟s
o
ut
i
ng
a
c
t
i
v
i
t
y
by
e
n
t
e
r
i
n
g
t
h
e
r
e
gi
s
t
e
r
e
d
ID
num
b
e
r
o
f
t
h
e
i
r
c
hi
l
d
r
e
n.
T
h
e
r
e
s
pe
c
t
i
v
e
o
ut
i
n
g
de
t
a
i
l
s
of
t
h
e
i
r
c
hi
l
d
r
e
n
w
i
l
l
b
e
e
xt
r
a
c
t
e
d
f
r
o
m
t
h
e
da
t
a
b
a
s
e
a
n
d
di
s
pl
a
y
e
d
i
n
a
n
o
rde
rl
y
s
e
que
n
c
e
d
ow
n
t
h
e
p
a
ge
.
T
hus
,
t
hi
s
f
e
a
t
u
r
e
gi
v
e
s
pa
r
e
n
t
s
t
h
e
e
a
s
e
of
a
c
c
e
s
s
t
o
t
h
e
o
ut
i
ng
i
n
f
o
r
m
a
t
i
o
n
o
f
t
h
e
i
r
c
h
i
l
d
r
e
n
.
Evaluation Warning : The document was created with Spire.PDF for Python.
In
do
n
e
s
i
a
n
J
E
l
e
c
E
ng
&
Co
m
p
S
c
i
IS
S
N
:
2502
-
4752
A
r
dui
no
bas
e
d
out
i
ng
and
at
t
e
n
danc
e
s
y
s
t
e
m
f
or
boar
d
i
ng
s
c
hool
s
t
ud
e
nt
s
(
Mat
t
h
e
w
Khoo
Kah
W
e
n
)
1057
F
i
gu
r
e
4
.
O
u
t
i
n
g
a
pp
r
o
v
a
l
p
a
ge
t
o
m
a
na
ge
s
t
u
de
nt
s
‟
a
c
t
i
v
i
t
i
e
s
F
i
gu
r
e
5
.
A
u
t
o
-
ge
n
e
ra
t
e
d
W
ha
t
s
A
pp
m
e
s
s
a
ge
t
o
n
o
t
i
fy
pa
r
e
nt
s
o
f
t
h
e
i
r
c
h
i
l
d
r
e
n‟s
o
ut
i
n
g
a
c
t
i
v
i
t
y
F
i
gu
r
e
6
.
M
a
i
n
pa
ge
f
o
r
t
e
a
c
h
e
r
s
t
o
v
i
e
w
s
t
ude
n
t
o
ut
i
n
g
a
c
t
i
v
i
t
i
e
s
F
i
gu
r
e
7
.
M
a
i
n
pa
ge
f
o
r
pa
r
e
nt
s
t
o
v
i
e
w
t
h
e
i
r
c
h
i
l
d
r
e
n
‟s
o
ut
i
ng
a
c
t
i
v
i
t
i
e
s
3.
2
.
H
ar
d
w
a
r
e
–
R
F
I
D
,
LC
D
an
d
R
TC
te
s
t
i
n
g
T
h
e
h
a
rdw
a
r
e
c
o
m
po
n
e
nt
s
a
r
e
c
o
nn
e
c
t
e
d
t
o
t
h
e
s
a
m
e
A
r
du
i
n
o
b
o
a
r
d
w
hi
c
h
i
s
p
r
o
g
r
a
m
m
e
d
t
hr
o
ug
h
t
h
e
A
rdui
n
o
ID
E
s
o
f
t
w
a
r
e
.
T
h
e
da
t
a
o
b
t
a
i
n
e
d
f
r
o
m
t
h
e
c
o
m
p
o
n
e
n
t
s
o
n
t
h
e
A
r
dui
n
o
b
o
a
r
d
i
s
t
ra
n
s
m
i
t
t
e
d
t
o
t
h
e
o
n
l
i
n
e
d
a
t
a
b
a
s
e
v
i
a
t
h
e
P
O
S
T
s
t
r
i
ng
c
o
m
m
a
n
d
f
o
l
l
ow
e
d
by
t
h
e
php
f
i
l
e
l
o
c
a
t
i
o
n
(
i
n
t
h
e
da
t
a
b
a
s
e
)
t
ha
t
i
s
w
r
i
t
t
e
n
i
n
t
h
e
A
rdui
n
o
ID
E
,
a
s
s
h
o
w
n
i
n
F
i
gu
r
e
8
.
Evaluation Warning : The document was created with Spire.PDF for Python.
IS
S
N
:
2502
-
4752
In
do
n
e
s
i
a
n
J
E
l
e
c
E
ng
&
Co
m
p
S
c
i
,
V
o
l
.
20
,
N
o
.
2
,
N
o
v
e
m
be
r
20
20
:
10
53
-
10
61
1058
F
i
gu
r
e
8
.
P
O
S
T
s
t
ri
n
g
c
o
m
m
a
n
d
t
o
l
i
n
k
t
h
e
A
r
dui
n
o
b
o
a
r
d
a
n
d
o
nl
i
n
e
da
t
a
b
a
s
e
(
r
e
d
u
nde
rl
i
n
e
d)
T
he
P
O
S
T
m
e
t
ho
d
i
s
u
s
e
d
i
n
c
o
rre
l
a
t
i
o
n
w
i
t
h
t
h
a
t
u
s
e
d
i
n
t
he
p
hp
f
i
l
e
w
hi
c
h
re
c
e
i
v
e
s
t
he
d
e
t
a
i
l
s
c
o
nt
a
i
ne
d
w
i
t
hi
n
t
he
b
o
dy
o
f
t
he
d
a
t
a
s
e
nt
f
ro
m
t
he
b
o
a
rd
t
o
d
e
t
e
rm
i
ne
i
f
t
he
s
e
d
e
t
a
i
l
s
m
a
t
c
he
s
t
he
i
nf
o
rm
a
t
i
o
n
s
a
v
e
d
i
n
t
he
d
a
t
a
b
a
s
e
[
2
5
]
.
T
hu
s
,
w
he
n
a
s
t
u
d
e
nt
s
c
a
ns
hi
s
c
a
rd
a
t
t
he
R
F
I
D
re
a
d
e
r,
t
he
i
nf
o
rm
a
t
i
o
n
f
ro
m
hi
s
c
a
rd
i
s
t
r
a
ns
f
e
rre
d
t
o
t
he
d
a
t
a
b
a
s
e
f
o
r
t
he
s
y
s
t
e
m
t
o
c
he
c
k
i
f
t
he
re
a
re
a
ny
a
u
t
ho
ri
z
e
d
o
u
t
i
ng
a
c
t
i
v
i
t
i
e
s
re
g
i
s
t
e
re
d
u
nd
e
r
t
ha
t
I
D
nu
m
b
e
r.
S
ho
u
l
d
t
hi
s
v
a
ri
a
b
l
e
re
t
u
r
n
a
t
ru
e
v
a
l
u
e
,
t
he
t
e
rm
“
C
he
c
ko
u
t
”
a
nd
t
he
e
x
a
c
t
c
he
c
ko
u
t
t
i
m
e
o
f
t
he
s
t
u
d
e
nt
(
re
c
o
rd
e
d
b
y
t
he
R
T
C
)
w
i
l
l
b
e
d
i
s
p
l
a
y
e
d
o
n
t
he
A
rd
u
i
no
I
D
E
s
e
ri
a
l
m
o
ni
t
o
r,
w
hi
c
h
i
n
t
u
r
n
l
e
a
d
s
t
o
t
he
L
C
D
d
i
s
p
l
a
y
i
ng
“
A
p
p
ro
v
e
d
O
u
t
i
ng
”
,
a
s
s
ho
w
n
i
n
F
i
g
u
re
9
(
a
)
a
nd
1
0
(
a
)
re
s
p
e
c
t
i
v
e
l
y
.
T
hu
s
,
t
he
s
t
u
d
e
nt
i
s
p
e
rm
i
t
t
e
d
t
o
l
e
a
v
e
t
he
s
c
ho
o
l
c
o
m
po
u
nd
t
o
a
t
t
e
nd
t
he
re
s
p
e
c
t
i
v
e
o
u
t
i
ng
a
c
t
i
v
i
t
y
.
S
i
m
i
l
a
r
l
y
,
w
he
n
t
he
s
t
u
d
e
n
t
s
c
a
ns
h
i
s
c
a
r
d
o
n
t
he
R
F
I
D
re
a
d
e
r
u
p
o
n
re
t
u
r
n
i
n
g
f
ro
m
h
i
s
o
u
t
i
n
g
a
c
t
i
v
i
t
y
,
t
he
t
e
r
m
“
C
he
c
k
i
n
”
a
nd
t
he
e
x
a
c
t
c
he
c
k
i
n
t
i
m
e
o
f
t
he
s
t
u
d
e
n
t
w
i
l
l
b
e
d
i
s
p
l
a
y
e
d
o
n
t
he
s
e
ri
a
l
m
o
n
i
t
o
r
,
w
h
i
c
h
i
n
t
u
r
n
l
e
a
d
s
t
o
t
he
L
C
D
d
i
s
p
l
a
y
i
ng
“
A
p
p
ro
v
e
d
E
n
t
ry
”
a
s
s
ho
w
n
i
n
F
i
g
u
re
9
(
b
)
a
nd
1
1
(
b
)
r
e
s
p
e
c
t
i
v
e
l
y
.
W
hi
l
e
t
h
i
s
h
a
p
p
e
n
s
,
t
he
c
he
c
k
o
u
t
a
n
d
c
he
c
k
-
i
n
t
i
m
e
o
f
t
he
s
t
u
d
e
n
t
a
r
e
s
i
m
u
l
t
a
n
e
o
u
s
l
y
t
r
a
ns
m
i
t
t
e
d
f
ro
m
t
he
A
r
d
u
i
no
I
D
E
t
o
t
he
d
a
t
a
b
a
s
e
w
he
re
t
he
e
x
a
c
t
t
i
m
e
(
i
n
2
4
ho
u
r
s
f
o
r
m
a
t
)
i
s
u
p
d
a
t
e
d
i
n
t
he
s
t
u
d
e
n
t
s
‟
d
e
t
a
i
l
s
w
e
b
p
a
g
e
,
a
s
s
ho
w
n
i
n
F
i
g
u
re
6
.
(a
)
(b
)
F
i
gu
r
e
9
.
D
i
s
p
l
a
y
of
(a
)
c
h
e
c
ko
ut
s
t
a
t
us
a
n
d
c
h
e
c
ko
ut
t
i
m
e
a
n
d
(b
)
c
h
e
c
k
-
i
n
s
t
a
t
us
a
nd
c
h
e
c
k
-
i
n
t
i
m
e
a
t
A
r
du
i
n
o
ID
E
s
e
ri
a
l
m
o
ni
t
o
r
(a
)
(b
)
F
i
gu
r
e
1
0.
D
i
s
pl
a
y
o
f
(a
)
a
pp
r
o
v
e
d
o
ut
i
ng
a
n
d
(b
)
a
p
p
r
o
v
e
d
e
nt
r
y
m
e
s
s
a
ge
by
t
h
e
L
CD
3.
3
.
O
v
e
r
al
l
r
e
s
u
l
ts
an
d
d
i
s
c
u
s
s
i
on
T
h
e
n
o
v
e
l
a
s
pe
c
t
s
of
t
h
e
r
e
s
ul
t
s
o
b
t
a
i
n
e
d
f
r
o
m
t
h
e
o
ut
i
ng
a
n
d
a
t
t
e
n
d
a
n
c
e
s
y
s
t
e
m
a
s
w
e
l
l
a
s
t
h
e
i
r
c
o
m
pa
ri
s
o
n
s
t
o
o
t
h
e
r
p
r
o
j
e
c
t
s
a
r
e
c
o
m
pr
e
h
e
n
s
i
v
e
l
y
d
e
s
c
r
i
b
e
d
i
n
t
h
i
s
s
e
c
t
i
o
n
.
F
i
r
s
t
a
n
d
f
o
r
e
m
o
s
t
,
t
h
e
s
c
h
o
o
l
m
a
na
ge
m
e
n
t
ha
s
t
h
e
a
ut
h
o
ri
t
y
t
o
a
ppr
o
v
e
o
r
di
s
a
pp
r
o
v
e
o
ut
i
n
g
a
c
t
i
v
i
t
i
e
s
of
t
h
e
s
t
ude
n
t
s
v
i
a
t
h
e
„a
ut
h
o
r
i
z
a
t
i
o
n
‟
f
i
e
l
d
i
n
t
h
e
o
ut
i
n
g
a
p
p
r
o
v
a
l
pa
ge
s
h
o
w
n
i
n
F
i
gu
r
e
4
.
T
hi
s
i
m
pl
e
m
e
n
t
a
t
i
o
n
e
n
s
u
r
e
s
t
ha
t
e
a
c
h
r
e
gi
s
t
e
r
e
d
a
c
t
i
v
i
t
y
i
s
s
c
r
u
t
i
ni
z
e
d
b
y
t
h
e
s
c
h
o
o
l
a
ut
h
o
r
i
t
i
e
s
b
e
fo
r
e
t
h
e
s
t
ude
n
t
s
a
r
e
g
i
v
e
n
t
h
e
g
r
e
e
n
l
i
g
h
t
t
o
pa
r
t
i
c
i
pa
t
e
i
n
t
h
e
m
,
t
hus
p
r
e
v
e
n
t
i
ng
s
t
ude
n
t
s
f
r
o
m
e
n
ga
gi
n
g
i
n
da
nge
r
o
us
o
r
ha
r
m
f
ul
a
c
t
i
v
i
t
i
e
s
.
Evaluation Warning : The document was created with Spire.PDF for Python.
In
do
n
e
s
i
a
n
J
E
l
e
c
E
ng
&
Co
m
p
S
c
i
IS
S
N
:
2502
-
4752
A
r
dui
no
bas
e
d
out
i
ng
and
at
t
e
n
danc
e
s
y
s
t
e
m
f
or
boar
d
i
ng
s
c
hool
s
t
ud
e
nt
s
(
Mat
t
h
e
w
Khoo
Kah
W
e
n
)
1059
F
urt
h
e
rm
o
r
e
,
t
h
e
a
c
c
e
s
s
i
b
i
l
i
t
y
of
t
hi
s
s
y
s
t
e
m
t
o
t
h
e
s
t
ude
nt
s
‟
pa
r
e
n
t
s
a
l
l
o
w
s
t
h
e
m
t
o
ke
e
p
a
c
l
o
s
e
v
i
e
w
o
n
t
h
e
i
r
c
h
i
l
d
r
e
n
‟s
o
ut
i
n
g
a
c
t
i
v
i
t
i
e
s
.
T
h
e
W
h
a
t
s
A
p
p
m
e
s
s
a
ge
s
e
n
t
t
o
t
h
e
i
r
p
h
o
n
e
s
a
n
d
t
h
e
i
r
a
c
c
e
s
s
t
o
t
h
e
o
n
l
i
n
e
w
e
b
pa
ge
h
e
l
ps
t
o
ke
e
p
i
n
t
o
uc
h
w
i
t
h
t
h
e
l
a
t
e
s
t
i
n
f
o
rm
a
t
i
o
n
r
e
g
a
r
d
i
n
g
t
h
e
i
r
c
h
i
l
d
r
e
n
‟s
a
c
t
i
v
i
t
i
e
s
.
T
hi
s
f
e
a
t
ur
e
i
s
a
na
l
o
go
us
t
o
t
h
e
p
r
o
j
e
c
t
pr
o
po
s
e
d
i
n
[26]
,
w
h
e
r
e
a
s
a
f
e
t
y
a
n
d
s
e
c
ur
i
t
y
s
y
s
t
e
m
i
s
de
ve
l
o
p
e
d
us
i
n
g
R
F
ID
a
n
d
G
l
o
b
a
l
S
y
s
t
e
m
fo
r
M
ob
i
l
e
c
o
m
m
u
n
i
c
a
t
i
o
n
(G
S
M
)
t
e
c
h
n
o
l
o
gy
t
o
s
i
m
ul
t
a
n
e
o
us
l
y
r
e
c
o
r
d
t
h
e
h
e
a
d
c
o
un
t
o
f
s
t
ude
n
t
s
b
o
a
r
di
ng
t
h
e
s
c
h
o
o
l
b
us
a
n
d
s
e
n
d
a
S
h
o
rt
M
e
s
s
a
ge
S
e
r
v
i
c
e
(S
M
S
)
n
o
t
i
f
i
c
a
t
i
o
n
t
o
i
n
f
o
r
m
t
h
e
i
r
p
a
r
e
nt
s
r
e
ga
rdi
n
g
t
h
e
i
r
w
h
e
r
e
a
b
o
ut
s
.
T
h
o
ugh
b
o
t
h
p
r
o
t
o
t
y
pe
s
a
r
e
c
o
m
pa
ra
b
l
e
,
t
h
e
p
r
e
s
e
n
t
o
ut
i
n
g
a
n
d
a
t
t
e
n
d
a
n
c
e
s
y
s
t
e
m
i
s
pr
e
f
e
r
r
e
d
a
s
i
t
e
n
c
o
m
pa
s
s
e
s
a
s
e
pa
r
a
t
e
o
n
l
i
n
e
w
e
b
pa
ge
t
ha
t
a
l
l
o
w
s
pa
r
e
n
t
s
t
o
a
c
c
e
s
s
t
h
e
s
y
s
t
e
m
a
t
a
n
y
t
i
m
e
t
o
c
h
e
c
k
o
n
t
h
e
l
a
t
e
s
t
u
pda
t
e
s
o
f
t
h
e
i
r
c
hi
l
dr
e
n
‟s
o
ut
i
n
g
a
c
t
i
v
i
t
i
e
s
.
D
e
s
pi
t
e
t
h
e
n
u
m
e
r
o
us
a
dv
a
n
t
a
ge
s
off
e
r
e
d
by
R
F
ID
s
u
c
h
a
s
po
r
t
a
b
i
l
i
t
y
a
n
d
e
a
s
e
o
f
i
n
f
o
r
m
a
t
i
o
n
t
r
a
n
s
f
e
r
,
t
h
i
s
t
y
pe
of
t
e
c
hn
o
l
o
g
y
s
t
i
l
l
ha
s
t
h
e
i
r
o
w
n
dra
w
b
a
c
ks
t
h
a
t
c
o
ul
d
a
f
fe
c
t
t
h
e
o
ut
c
o
m
e
o
f
t
h
e
p
r
o
j
e
c
t
.
A
c
c
o
r
di
n
g
t
o
a
s
i
m
i
l
a
r
p
r
o
j
e
c
t
de
ve
l
o
pe
d
i
n
[27]
o
n
a
n
A
c
t
i
v
i
t
y
A
t
t
e
n
da
n
c
e
M
o
n
i
t
o
r
i
n
g
S
y
s
t
e
m
(A
A
M
S
)
fo
r
uni
v
e
r
s
i
t
y
s
t
ude
n
t
s
us
i
n
g
R
F
ID
t
e
c
hn
o
l
o
g
y
,
t
h
e
m
a
i
n
l
i
m
i
t
a
t
i
o
n
o
f
RF
ID
i
s
t
h
e
o
c
c
ur
r
e
n
c
e
of
s
i
gn
a
l
c
o
l
l
i
s
i
o
n
a
n
d
i
n
t
e
r
f
e
r
e
n
c
e
i
f
t
h
e
r
e
a
de
r
a
t
t
e
m
p
t
s
t
o
r
e
a
d
m
ul
t
i
pl
e
t
a
gs
a
t
o
n
e
t
i
m
e
w
h
e
n
t
h
e
y
a
r
e
a
l
l
h
e
l
d
a
t
c
l
o
s
e
pr
o
xi
m
i
t
y
t
o
e
a
c
h
o
t
h
e
r.
T
h
o
ug
h
t
h
i
s
i
n
t
e
r
f
e
r
e
n
c
e
c
o
ul
d
r
e
s
ul
t
i
n
da
t
a
l
o
s
s
,
i
t
c
a
n
b
e
pr
e
ve
n
t
e
d
t
hr
o
ug
h
t
h
e
a
ppl
i
c
a
t
i
o
n
o
f
a
n
t
i
-
c
o
l
l
i
s
i
o
n
a
l
go
ri
t
hm
s
[19
,
28]
o
r
s
i
m
pl
y
by
m
a
i
nt
a
i
ni
n
g
a
p
p
r
o
pri
a
t
e
di
s
t
a
n
c
e
s
b
e
t
w
e
e
n
e
a
c
h
of
t
h
e
t
a
gs
.
O
n
c
e
t
h
i
s
i
s
a
c
c
o
un
t
e
d
fo
r
,
t
h
e
R
F
ID
r
e
a
de
r
w
i
l
l
be
a
b
l
e
t
o
pe
r
fo
r
m
i
t
s
p
ri
m
a
r
y
f
un
c
t
i
o
n
s
of
de
t
e
c
t
i
n
g
t
h
e
R
F
ID
t
a
g
(i
m
p
l
a
nt
e
d
i
n
t
h
e
s
t
u
de
nt
ID
c
a
r
d)
t
o
a
l
l
o
w
t
h
e
i
n
f
o
r
m
a
t
i
o
n
s
t
o
r
e
d
i
n
t
h
e
t
a
g
t
o
be
t
ra
ns
m
i
t
t
e
d
t
o
t
he
o
nl
i
ne
d
a
t
a
b
a
s
e
f
o
r
f
u
rt
he
r
p
ro
c
e
s
s
i
ng
.
T
hi
s
w
i
l
l
c
o
nt
ri
b
u
t
e
t
o
t
h
e
s
m
o
o
t
h
a
nd
s
e
a
m
l
e
s
s
o
pe
ra
t
i
o
n
o
f
t
he
e
nt
i
r
e
s
y
s
t
e
m
.
I
n
s
h
o
rt
,
t
he
i
m
p
l
e
m
e
nt
a
t
i
o
n
o
f
r
e
q
ui
re
d
m
e
a
s
u
r
e
s
e
na
b
l
e
s
t
hi
s
p
ro
j
e
c
t
t
o
b
e
us
e
d
a
s
a
de
f
i
ni
t
i
v
e
a
p
p
r
o
a
c
h
t
o
r
e
s
o
l
v
e
t
he
m
a
i
n
p
ro
b
l
e
m
s
o
f
s
a
f
e
t
y
a
nd
s
e
c
u
ri
t
y
c
u
rre
nt
l
y
f
a
c
e
d
b
y
b
o
a
r
d
i
ng
s
c
ho
o
l
s
.
4.
C
O
N
C
LU
S
I
O
N
A
s
a
c
o
n
c
l
us
i
o
n,
t
h
e
Io
T
-
b
a
s
e
d
S
m
a
r
t
O
ut
i
n
g
a
n
d
A
t
t
e
nda
nc
e
S
y
s
t
e
m
i
s
a
b
l
e
t
o
m
a
na
ge
t
h
e
o
ut
i
n
g
a
c
t
i
v
i
t
i
e
s
o
f
bo
a
r
d
i
n
g
s
c
h
o
o
l
s
t
ude
nt
s
i
n
a
n
e
f
f
i
c
i
e
n
t
a
n
d
o
rga
n
i
z
e
d
m
a
nn
e
r
.
I
t
i
s
a
l
s
o
c
a
pa
b
l
e
of
e
n
s
ur
i
ng
a
pr
o
t
e
c
t
e
d
e
n
v
i
r
o
nm
e
n
t
f
o
r
s
t
ude
n
t
s
r
e
s
i
di
n
g
i
n
b
o
a
r
d
i
n
g
s
c
h
o
o
l
s
a
s
i
t
o
n
l
y
a
l
l
ow
s
s
t
ude
n
t
s
t
o
l
e
a
v
e
t
h
e
s
c
h
o
o
l
c
o
m
po
un
d
t
o
a
t
t
e
n
d
a
c
t
i
v
i
t
i
e
s
a
u
t
h
o
ri
z
e
d
by
t
h
e
s
c
h
o
o
l
m
a
n
a
ge
m
e
n
t
.
A
t
t
h
e
s
a
m
e
t
i
m
e
,
pa
r
e
n
t
s
a
r
e
c
o
n
s
t
a
nt
l
y
n
o
t
i
f
i
e
d
o
f
t
h
e
i
r
c
hi
l
d
r
e
n
‟s
p
a
rt
i
c
i
p
a
t
i
o
n
i
n
o
ut
i
n
g
a
c
t
i
v
i
t
i
e
s
t
hr
o
ug
h
a
W
h
a
t
s
A
pp
m
e
s
s
a
ge
t
ha
t
i
s
s
e
nt
t
o
t
h
e
i
r
ph
o
n
e
s
e
a
c
h
t
i
m
e
t
h
e
i
r
c
h
i
l
d
r
e
n
l
e
a
v
e
t
h
e
s
c
h
o
o
l
c
o
m
po
un
d.
H
e
n
c
e
,
t
h
i
s
s
y
s
t
e
m
a
l
l
o
w
s
pa
r
e
n
t
s
t
o
ke
e
p
t
a
b
s
o
n
t
h
e
i
r
c
h
i
l
d
r
e
n
‟s
m
o
v
e
m
e
n
t
s
a
s
t
h
e
y
a
r
e
u
na
b
l
e
t
o
c
o
m
m
u
ni
c
a
t
e
w
i
t
h
t
h
e
i
r
c
hi
l
d
r
e
n
o
n
a
f
a
c
e
-
to
-
f
a
c
e
b
a
s
i
s
.
T
h
e
de
v
e
l
o
p
m
e
nt
o
f
t
hi
s
s
y
s
t
e
m
e
n
c
o
m
p
a
s
s
e
s
b
o
t
h
t
h
e
ha
r
dw
a
r
e
a
nd
s
o
f
t
w
a
re
f
e
a
t
u
re
s
w
hi
c
h
a
r
e
i
nt
ri
c
a
t
e
l
y
de
s
i
g
n
e
d
t
o
w
o
r
k
ha
nd
-
in
-
ha
nd
t
o
e
n
s
u
re
t
ha
t
a
n
i
de
a
l
s
y
s
t
e
m
i
s
p
r
o
v
i
de
d
f
o
r
s
t
ude
nt
s
t
o
a
pp
l
y
f
o
r
t
h
e
i
r
o
u
t
i
ng
a
c
t
i
v
i
t
i
e
s
a
nd
t
he
s
c
h
o
o
l
a
u
t
h
o
ri
t
i
e
s
a
r
e
a
b
l
e
t
o
m
o
ni
t
o
r
t
he
s
e
a
c
t
i
v
i
t
i
e
s
t
hr
o
ug
h
re
f
e
r
e
n
c
e
t
o
t
h
e
o
nl
i
n
e
X
A
M
P
P
d
a
t
a
b
a
s
e
.
T
h
e
r
e
s
u
l
t
s
o
b
t
a
i
ne
d
f
r
o
m
t
he
t
e
s
t
i
ng
p
r
o
c
e
s
s
ha
v
e
s
h
o
w
n
t
ha
t
t
he
s
y
s
t
e
m
i
s
c
a
p
a
b
l
e
o
f
m
a
na
g
i
ng
s
t
ude
nt
a
c
t
i
v
i
t
i
e
s
t
hr
o
u
g
h
t
he
o
rga
ni
z
e
d
s
t
o
ra
ge
o
f
o
ut
i
ng
i
nf
o
rm
a
t
i
o
n
i
n
t
he
d
a
t
a
b
a
s
e
a
nd
t
h
e
c
o
n
s
i
s
t
e
nt
re
l
a
y
o
f
i
n
f
o
rm
a
t
i
o
n
b
e
t
w
e
e
n
t
h
e
ha
rdw
a
r
e
a
nd
s
o
f
t
w
a
r
e
c
o
m
po
n
e
nt
s
w
hi
c
h
e
ns
u
r
e
s
t
ha
t
t
he
o
ut
p
ut
o
f
t
h
e
s
y
s
t
e
m
i
s
p
r
o
d
uc
e
d
i
n
a
c
c
o
rd
a
n
c
e
t
o
t
h
e
i
npu
t
p
ro
v
i
de
d
.
A
l
l
t
hi
ng
s
c
o
n
s
i
de
re
d
,
t
hi
s
p
r
o
j
e
c
t
ha
s
e
s
t
a
b
l
i
s
h
e
d
a
s
y
s
t
e
m
a
t
i
c
a
nd
c
o
m
p
r
e
he
n
s
i
v
e
a
p
p
r
o
a
c
h
i
n
t
he
m
a
na
ge
m
e
nt
a
nd
a
d
m
i
ni
s
t
ra
t
i
o
n
o
f
s
t
u
de
nt
o
u
t
i
ng
a
c
t
i
v
i
t
i
e
s
.
A
C
K
N
O
WL
ED
G
E
M
EN
TS
T
h
e
a
u
t
h
o
r
s
w
o
ul
d
l
i
ke
t
o
e
xpr
e
s
s
g
ra
t
i
t
ude
f
o
r
f
i
n
a
n
c
i
a
l
s
up
po
r
t
a
n
d
c
o
n
t
r
i
b
ut
i
o
n
s
f
r
o
m
M
i
n
i
s
t
r
y
of
E
duc
a
t
i
o
n
(M
O
E
)
M
a
l
a
y
s
i
a
u
n
de
r
F
i
n
a
n
c
i
a
l
R
e
s
e
a
r
c
h
G
ra
n
t
S
c
h
e
m
e
(F
R
G
S
)
v
o
t
n
u
m
b
e
r
16
30.
R
EF
ER
EN
C
ES
[
1]
“
O
f
f
i
c
i
a
l
W
e
b
s
i
t
e
D
e
pa
r
t
m
e
nt
o
f
O
c
c
upa
t
i
o
na
l
S
a
f
e
t
y
a
nd
H
e
a
l
t
h
-
S
C
H
O
O
L
S
A
F
E
T
Y
:
P
r
o
g
r
a
m
m
e
s
t
a
r
g
e
t
s
t
ud
e
n
t
s
a
nd
s
t
a
f
f
,
t
o
o
.
”
[
O
nl
i
n
e
]
.
A
v
a
i
l
a
b
l
e
:
ht
t
p:
/
/
w
w
w
.
do
s
h
.
g
o
v.
m
y
/
i
nde
x
.
php
/
a
r
c
hi
v
e
-
ne
w
s
/
201
3/
1002
-
s
c
ho
o
l
-
s
a
f
e
t
y
-
pr
og
r
a
m
m
e
s
-
t
a
r
g
e
t
-
s
t
u
de
n
t
s
-
a
n
d
-
s
t
a
f
f
-
t
oo
-
r
e
a
d
-
m
o
r
e
-
s
c
h
o
o
l
-
s
a
f
e
t
y
-
pr
og
r
a
m
m
e
s
-
t
a
r
g
e
t
-
s
t
u
de
n
t
s
-
a
n
d
-
s
t
a
f
f
-
t
o
o
.
[
A
c
c
e
s
s
e
d:
03
-
O
c
t
-
2018]
.
[
2]
“
M
o
v
e
t
o
c
ur
b
t
r
ua
nc
y
a
m
o
n
g
s
t
ud
e
nt
s
|
T
he
S
t
a
r
O
n
l
i
ne
.
”
[
O
nl
i
n
e
]
.
A
v
a
i
l
a
b
l
e
:
ht
t
ps
:
/
/
w
w
w
.
t
he
s
t
a
r
.
c
o
m
.
m
y
/
ne
w
s
/
c
o
m
m
uni
t
y
/
2011
/
02
/
03
/
m
o
v
e
-
to
-
c
ur
b
-
t
r
ua
nc
y
-
a
m
o
n
g
-
s
t
ude
n
t
s
/
.
[
A
c
c
e
s
s
e
d:
03
-
O
c
t
-
2018]
.
[
3]
“
C
a
m
pus
S
a
f
e
t
y
&
S
e
c
ur
i
t
y
|
N
e
xu
s
I
nt
e
r
n
a
t
i
o
na
l
S
c
ho
o
l
M
a
l
a
y
s
i
a
.
”
[
O
nl
i
n
e
]
.
A
v
a
i
l
a
b
l
e
:
ht
t
ps
:
/
/
w
w
w
.
n
e
xu
s
.
e
du
.
m
y
/
s
t
ud
e
nt
-
l
i
f
e
/
a
r
o
und
-
t
he
-
c
a
m
pus
/
s
a
f
e
t
y
-
s
e
c
ur
i
t
y
.
[
A
c
c
e
s
s
e
d:
08
-
N
o
v
-
2018]
.
[
4]
A
hm
a
d
Z
a
ki
B
i
n
I
br
a
hi
m
,
“
O
u
t
i
ng
M
a
na
g
e
m
e
n
t
S
y
s
t
e
m
,
”
B
a
c
he
l
o
r
o
f
C
om
p
ut
e
r
S
c
i
e
nc
e
(
So
f
t
w
ar
e
D
e
v
e
l
opm
e
nt
)
F
ac
ul
t
y
o
f
I
n
f
o
r
m
at
i
on
a
nd
C
om
m
un
i
c
a
t
i
on
T
e
c
hno
l
og
y
,
U
n
i
v
e
r
s
i
t
i
T
e
k
ni
k
a
l
M
al
a
y
s
i
a
M
e
l
ak
a
,
pp
1
-
24
,
2
011
.
[
5]
W
a
n
N
ur
H
i
da
y
u
B
i
nt
i
W
a
n
J
a
‟
A
f
a
r
,
"
H
o
s
t
e
l
M
a
na
g
e
m
e
n
t
S
y
s
t
e
m
,
"
D
e
gr
e
e
of
B
ac
he
l
or
o
f
C
om
pu
t
e
r
Sc
i
e
nc
e
,
F
ac
ul
t
y
o
f
C
om
pu
t
e
r
S
y
s
t
e
m
s
&
So
f
t
w
ar
e
E
n
gi
ne
e
r
i
n
g,
U
n
i
v
e
r
s
i
t
i
M
a
l
ay
s
i
a
P
ahang
,
pp
1
-
26
,
2012
.
Evaluation Warning : The document was created with Spire.PDF for Python.
IS
S
N
:
2502
-
4752
In
do
n
e
s
i
a
n
J
E
l
e
c
E
ng
&
Co
m
p
S
c
i
,
V
o
l
.
20
,
N
o
.
2
,
N
o
v
e
m
be
r
20
20
:
10
53
-
10
61
1060
[
6]
S
udha
ka
r
A
v
a
r
e
ddy
,
M
o
ni
ka
P
,
P
r
i
y
a
nka
K
,
S
hy
na
z
B
e
g
um
K
,
S
o
um
y
a
C
R
,
"
H
o
s
t
e
l
S
t
ud
e
n
t
D
e
t
o
ur
M
a
n
a
g
e
m
e
nt
S
y
s
t
e
m
,
"
I
n
t
e
r
na
t
i
ona
l
J
ou
r
na
l
f
o
r
T
e
c
h
nol
ogi
c
a
l
R
e
s
e
ar
c
h
I
n
E
ng
i
ne
e
r
i
ng
,
v
o
l
.
3
,
no
.
9,
pp
.
206
6
-
2067
,
2016
.
[
7]
N
ur
s
h
a
z
a
bi
n
t
i
M
a
z
l
a
n
,
“
B
o
a
r
di
ng
S
c
hoo
l
O
ut
i
ng
S
y
s
t
e
m
(
B
S
O
S
)
,
”
D
i
s
s
e
r
t
at
i
on
P
ape
r
(
B
ac
he
l
or
o
f
T
e
c
hno
l
og
y
H
ons
(
B
u
s
i
ne
s
s
I
n
f
or
m
at
i
on
Sy
s
t
e
m
))
--
U
n
i
v
e
r
s
i
t
i
T
e
k
no
l
og
i
P
e
t
r
o
nas
,
p
p
19
-
22
,
2
01
5
.
[
8]
N
o
r
a
z
l
i
l
a
h
K
ha
m
da
n
,
“
S
i
s
t
e
m
m
a
kl
um
a
t
ke
l
ua
r
s
a
s
u
k
pe
ng
huni
a
s
r
a
m
a
S
M
K
K
ua
l
a
K
r
a
u
m
e
ng
g
una
ka
n
M
y
K
a
d
da
n
a
p
l
i
ka
s
i
m
o
bi
l
e
,
”
P
r
oj
e
c
t
P
ape
r
(
B
ac
he
l
or
o
f
C
om
pu
t
e
r
Sc
i
e
nc
e
(
Sof
t
w
ar
e
E
ngi
ne
e
r
i
ng)
)
–
U
ni
v
e
r
s
i
t
i
M
a
l
ay
s
i
a
P
ahang
,
pp
16
-
17
,
201
0
.
[
9]
G
e
ni
S
o
f
t
w
a
r
e
,
“
E
a
s
y
R
e
g
i
s
t
r
a
t
i
o
n
S
y
s
t
e
m
w
i
t
h
M
y
ka
d
R
e
a
de
r
”
,
[
A
c
c
e
s
s
e
d:
8
D
e
c
e
m
be
r
2018]
f
r
o
m
ht
t
ps
:
/
/
w
w
w
.
g
e
n
i
s
o
f
t
w
a
r
e
.
n
e
t
/
e
a
s
y
-
r
e
g
i
s
t
r
a
t
i
o
n
-
s
o
f
t
w
a
r
e
/
[
10]
N
o
r
a
r
i
n
a
E
z
z
a
t
i
J
o
ha
n
,
N
o
r
A
z
i
l
a
A
w
a
ng
A
bu
B
a
ka
r
,
N
i
k
M
a
r
s
y
a
ha
r
i
a
ni
N
i
k
D
a
u
d,
"
D
e
v
e
l
o
pm
e
nt
O
f
E
-
O
ut
i
ng
S
y
s
t
e
m
(
E
O
S
)
U
s
i
ng
A
da
pt
e
d
P
r
o
t
o
t
y
pe
M
o
de
l
,
"
e
-
A
c
ade
m
i
a
J
our
n
al
20
17
U
ni
v
e
r
s
i
t
i
T
e
k
nol
ogi
M
A
R
A
T
e
r
e
ngganu
,
v
o
l
.
6
,
no
.
1
,
p
p
8
-
18
,
20
17
.
[
11]
“
A
r
dui
no
-
I
nt
r
o
duc
t
i
o
n.
”
[
O
nl
i
ne
]
.
A
v
a
i
l
a
b
l
e
:
ht
t
ps
:
/
/
w
w
w
.
a
r
d
ui
n
o
.
c
c
/
e
n/
G
ui
d
e
/
I
nt
r
o
duc
t
i
o
n
.
[
A
c
c
e
s
s
e
d:
20
-
A
pr
-
2019]
.
[
12]
“
R
F
I
D
M
i
f
a
r
e
R
C
522
C
a
r
d
R
e
a
de
r
&
W
r
i
t
e
r
M
o
dul
e
(
1
3.
56
M
H
z
)
w
/
M
i
f
a
r
e
C
a
r
d
&
K
e
y
c
ha
i
n
T
a
g
|
Q
Q
O
n
l
i
ne
T
r
a
d
i
ng
.
”
[
O
nl
i
ne
]
.
A
v
a
i
l
a
bl
e
:
ht
t
p:
/
/
q
qt
r
a
d
i
ng
.
c
o
m
.
m
y
/
r
f
i
c
-
m
i
f
a
r
e
-
r
c
522
-
c
a
r
d
-
r
e
a
d
e
r
-
m
o
dul
e
-
c
a
r
d
-
k
e
y
c
ha
i
n
-
c
hi
p.
[
A
c
c
e
s
s
e
d:
29
-
N
o
v
-
2018]
.
[
13]
“
M
i
f
a
r
e
13
.
56
M
hz
R
C
5
22
R
F
I
D
C
a
r
d
R
e
a
de
r
M
o
dul
e
[
M
F
R
C
-
522]
-
U
S
$
1.
2
5
:
H
A
O
Y
U
E
l
e
c
t
r
o
ni
c
s
:
M
a
ke
E
ng
i
ne
e
r
s
J
o
b
E
a
s
i
e
r
.
”
[
O
nl
i
ne
]
.
A
v
a
i
l
a
b
l
e
:
ht
t
p
s
:
/
/
w
w
w
.
ho
t
m
c
u.
c
o
m
/
m
i
f
a
r
e
-
1356m
hz
-
r
c
522
-
r
f
i
d
-
c
a
r
d
-
r
e
a
de
r
-
m
o
dul
e
-
p
-
84.
h
t
m
l
.
[
A
c
c
e
s
s
e
d:
29
-
N
ov
-
2018]
.
[
14]
M
o
r
g
a
n,
J
.
,
&
R
a
nky
,
P
.
G
,
"
A
n
i
n
t
r
o
duc
t
i
o
n
t
o
r
a
di
o
f
r
e
q
ue
nc
y
i
de
n
t
i
f
i
c
a
t
i
o
n
(
R
F
I
D
)
m
e
t
ho
ds
a
nd
s
o
l
u
t
i
o
ns
,"
A
s
s
e
m
bl
y
A
u
t
om
a
t
i
on
,
2006
.
[
15]
S
e
l
l
i
t
t
o
,
C
.
,
B
ur
g
e
s
s
,
S
.
,
H
a
w
k
i
ng
,
P
.,
"
I
nf
o
r
m
a
t
i
o
n
qua
l
i
t
y
a
t
t
r
i
b
ut
e
s
a
s
s
o
c
i
a
t
e
d
w
i
t
h
R
F
I
D
-
de
r
i
v
e
d
be
n
e
f
i
t
s
i
n
t
he
r
e
t
a
i
l
s
u
ppl
y
c
ha
i
n
,"
I
nt
e
r
n
at
i
on
al
J
o
ur
n
al
o
f
R
e
t
a
i
l
&
D
i
s
t
r
i
b
ut
i
on
M
an
age
m
e
nt
,
v
o
l
.
35
,
no
.
1,
pp
.
69
-
87
,
2007
.
[
16]
K
a
ur
,
M
.
,
S
a
n
dhu
,
M
.
,
M
o
ha
n
,
N
.
,
&
S
a
nd
hu
,
P
.
S
.
,
"
R
F
I
D
T
e
c
hno
l
o
gy
P
r
i
nc
i
p
l
e
s
,
A
dv
a
nt
a
g
e
s
,
L
i
m
i
t
a
t
i
o
ns
;
I
t
s
A
ppl
i
c
a
t
i
o
ns
,"
I
n
t
e
r
na
t
i
o
nal
J
our
nal
o
f
C
om
pu
t
e
r
a
nd
E
l
e
c
t
r
i
c
a
l
E
n
gi
ne
e
r
i
ng
,
v
o
l
.
3
,
no
.
1
,
pp
.
151
,
2011
.
[
17]
“
L
C
D
.
”
[
O
nl
i
ne
]
.
A
v
a
i
l
a
bl
e
:
h
t
t
p
s
:
/
/
w
w
w
.
e
ng
i
ne
e
r
s
g
a
r
a
g
e
.
c
o
m
/
c
om
po
ne
nt
s
/
l
c
d
/
.
[
A
c
c
e
s
s
e
d:
20
-
A
pr
i
l
-
2019]
.
[
18]
“
R
T
C
R
e
a
l
T
i
m
e
C
l
o
c
k
M
o
dul
e
-
O
t
he
r
s
-
S
e
ns
o
r
.
”
[
O
nl
i
ne
]
.
A
v
a
i
l
a
b
l
e
:
ht
t
ps
:
/
/
w
w
w
.
m
y
bo
t
i
c
.
c
om
.
m
y
/
pr
o
duc
t
s
/
R
T
C
-
R
e
a
l
-
T
i
m
e
-
C
l
o
c
k
-
M
odul
e
/
4
51.
[
A
c
c
e
s
s
e
d:
20
-
A
pr
i
l
-
201
9]
.
[
19]
“
E
S
P
-
01
W
i
F
i
S
e
r
i
a
l
T
r
a
n
s
c
e
i
v
e
r
M
o
dul
e
(
E
S
P
82
66)
.
”
[
O
nl
i
n
e
]
.
A
v
a
i
l
a
bl
e
:
ht
t
ps
:
/
/
m
y
.
c
y
t
r
o
n.
i
o
/
p
-
e
s
p
-
01
-
w
i
f
i
-
s
e
r
i
a
l
-
t
r
a
ns
c
e
i
v
e
r
-
m
o
dul
e
-
e
s
p
8266
.
[
A
c
c
e
s
s
e
d
:
29
-
N
ov
-
2018]
.
[
20]
“
W
i
F
i
M
o
dul
e
-
E
S
P
8
266
-
W
R
L
-
13678
-
S
pa
r
kF
un
E
l
e
c
t
r
o
ni
c
s
.
”
[
O
nl
i
ne
]
.
A
v
a
i
l
a
bl
e
:
ht
t
ps
:
/
/
w
w
w
.
s
pa
r
kf
un
.
c
o
m
/
pr
o
duc
t
s
/
1
3678
.
[
A
c
c
e
s
s
e
d:
29
-
N
ov
-
2018]
.
[
21]
“
X
A
M
P
P
”
[
O
nl
i
ne
]
.
A
v
a
i
l
a
bl
e
:
ht
t
p:
/
/
w
w
w
.
i
a
p
s
w
e
bd
e
s
i
g
n.
c
o
m
/
boo
ks
/
w
e
b
-
ho
s
t
i
ng
/
xa
m
p
p.
pdf
.
[
A
c
c
e
s
s
e
d:
20
-
A
pr
-
2019]
.
[
22]
“
W
ha
t
i
s
X
A
M
P
P
a
n
d
H
o
w
t
o
I
ns
t
a
l
l
X
A
M
P
P
o
n
y
our
L
oc
a
l
C
o
m
put
e
r
?
”
[
O
nl
i
ne
]
.
A
v
a
i
l
a
bl
e
:
ht
t
ps
:
/
/
w
w
w
.
w
p
bl
o
g
x.
c
o
m
/
w
ha
t
-
is
-
xa
m
p
p/
.
[
A
c
c
e
s
s
e
d:
20
-
A
pr
-
2019]
.
[
23]
“
php
M
y
A
dm
i
n
-
B
r
i
ng
i
ng
M
y
S
Q
L
t
o
t
he
w
e
b
.”
[
O
nl
i
ne
]
.
A
v
a
i
l
a
b
l
e
:
ht
t
ps
:
/
/
w
w
w
.
ph
pm
y
a
dm
i
n.
ne
t
/
.
[
A
c
c
e
s
s
e
d:
2
-
M
a
y
-
2019]
.
[
24]
“
W
ha
t
s
A
pp
F
A
Q
-
U
s
i
ng
C
l
i
c
k
t
o
C
ha
t
.
”
[
O
nl
i
ne
]
.
A
v
a
i
l
a
b
l
e
:
ht
t
p
s
:
/
/
f
a
q.
w
h
a
t
s
a
p
p.
c
o
m
/
e
n/
g
e
n
e
r
a
l
/
260
0003
0.
[
A
c
c
e
s
s
e
d:
24
-
S
e
p
-
2019]
.
[
25]
“
S
t
a
c
k
O
v
e
r
f
l
o
w
-
H
o
w
to
c
he
c
k
us
e
r
na
m
e
a
nd
pa
s
s
w
o
r
d
m
a
t
c
he
s
t
h
e
da
t
a
ba
s
e
v
a
l
u
e
s
.
”
[
O
nl
i
ne
]
.
A
v
a
i
l
a
bl
e
:
ht
t
ps
:
/
/
s
t
a
c
ko
v
e
r
f
l
o
w
.
c
o
m
/
que
s
t
i
o
ns
/
4
6819
734
/
ho
w
-
to
-
c
he
c
k
-
us
e
r
n
a
m
e
-
a
nd
-
pa
s
s
w
o
r
d
-
m
a
t
c
he
s
-
t
he
-
da
t
a
ba
s
e
-
v
a
l
ue
s
.
[
A
c
c
e
s
s
e
d:
8
-
M
a
y
-
2019]
.
[
26]
H
.
M
a
ns
o
r
,
T
.
M
.
A
.
M
.
F
a
dz
i
r
,
T
.
S
.
G
un
a
w
a
n
,
a
nd
Z
.
J
a
n
i
n
,
“
S
a
f
e
t
y
a
nd
s
e
c
ur
i
t
y
s
o
l
ut
i
o
n
f
o
r
s
c
ho
o
l
bus
t
h
r
o
ug
h
R
F
I
D
a
nd
G
S
M
t
e
c
hno
l
o
g
i
e
s
,
”
I
ndo
ne
s
.
J
.
E
l
e
c
t
r
.
E
n
g.
C
om
pu
t
.
Sc
i
.
,
v
o
l
.
1
7,
no
.
2
,
p
p.
8
04
–
8
14,
2
019
.
[
27]
R
.
A
.
J
.
M
.
G
i
n
i
ng
,
S
.
S
.
M
.
F
a
uz
i
,
I
.
M
.
A
y
ub,
M
.
N
.
F
.
J
a
m
a
l
u
ddi
n
,
I
.
P
us
pi
t
a
s
a
r
i
,
a
n
d
O
kf
a
l
i
s
a
,
“
D
e
s
i
g
n
a
nd
de
v
e
l
o
pm
e
nt
o
f
a
c
t
i
v
i
t
y
a
t
t
e
n
da
nc
e
m
o
ni
t
o
r
i
ng
s
y
s
t
e
m
ba
s
e
d
o
n
R
F
I
D
,
”
I
ndone
s
.
J
.
E
l
e
c
t
r
.
E
ng
.
C
om
put
.
Sc
i
.
(
I
J
E
E
C
S)
,
v
o
l
.
17
,
no
.
1,
pp
.
500
–
507
,
201
9
.
[
28]
R
g
hi
o
ui
,
A
.
,
&
O
um
na
d,
A
,
"
I
nt
e
r
ne
t
o
f
T
hi
ng
s
:
S
ur
v
e
y
s
f
o
r
M
e
a
s
u
r
i
ng
H
um
a
n
A
c
t
i
v
i
t
i
e
s
f
r
o
m
E
v
e
r
y
w
he
r
e
,"
I
nt
e
r
n
at
i
on
al
J
o
ur
n
al
o
f
E
l
e
c
t
r
i
c
al
&
C
om
pu
t
e
r
E
n
gi
ne
e
r
i
ng
(
I
J
E
C
E
)
,
v
o
l
.
7
,
no
.
5
,
20
17
.
B
I
O
G
R
A
P
H
I
ES
O
F
A
U
T
H
O
R
S
M
at
t
h
e
w
K
h
o
o
K
ah
We
n
c
o
m
pl
e
t
e
d
hi
s
pr
e
-
uni
v
e
r
s
i
t
y
s
t
udi
e
s
(
S
T
P
M
)
a
t
S
M
J
K
N
a
n
H
w
a
,
S
i
t
i
a
w
a
n
i
n
20
14
b
e
f
o
r
e
r
e
c
e
i
v
i
ng
h
i
s
B
a
c
he
l
o
r
‟
s
D
e
g
r
e
e
o
f
E
l
e
c
t
r
o
n
i
c
E
ng
i
ne
e
r
i
ng
w
i
t
h
H
o
no
ur
s
a
t
U
ni
v
e
r
s
i
t
i
T
un
H
us
s
e
i
n
O
nn
M
a
l
a
y
s
i
a
(
U
T
H
M
)
i
n
2019
.
H
e
i
s
c
ur
r
e
nt
l
y
pe
r
s
ui
ng
hi
s
M
a
s
t
e
r
‟
s
D
e
g
r
e
e
i
n
E
l
e
c
t
r
o
ni
c
E
ng
i
ne
e
r
i
ng
a
t
t
he
s
a
m
e
uni
v
e
r
s
i
t
y
,
w
he
r
e
by
he
i
s
t
a
k
i
n
g
o
n
f
ul
l
t
i
m
e
r
e
s
e
a
r
c
h
i
n
t
he
f
i
e
l
d
o
f
M
i
c
r
o
e
l
e
c
t
r
o
n
i
c
s
.
H
i
s
r
e
s
e
a
r
c
h
pr
o
j
e
c
t
i
s
pe
r
t
a
i
ni
ng
t
o
t
h
e
de
s
i
g
n
o
f
a
C
M
O
S
14
-
b
i
t
S
uc
c
e
s
s
i
v
e
A
ppr
o
xi
m
a
t
i
o
n
R
e
g
i
s
t
e
r
(
S
A
R
)
A
na
l
o
g
-
to
-
D
i
g
i
t
a
l
C
o
nv
e
r
t
e
r
(
A
D
C
)
us
i
ng
V
L
S
I
i
m
pl
e
m
e
nt
a
t
i
o
n.
Evaluation Warning : The document was created with Spire.PDF for Python.
In
do
n
e
s
i
a
n
J
E
l
e
c
E
ng
&
Co
m
p
S
c
i
IS
S
N
:
2502
-
4752
A
r
dui
no
bas
e
d
out
i
ng
and
at
t
e
n
danc
e
s
y
s
t
e
m
f
or
boar
d
i
ng
s
c
hool
s
t
ud
e
nt
s
(
Mat
t
h
e
w
Khoo
Kah
W
e
n
)
1061
N
o
r
n
ab
i
h
ah
b
t
A
h
m
ad
r
e
c
e
i
v
e
d
he
r
B
a
c
he
l
o
r
‟
s
D
e
g
r
e
e
o
f
E
l
e
c
t
r
i
c
a
l
a
n
d
E
l
e
c
t
r
o
ni
c
S
y
s
t
e
m
s
w
i
t
h
H
o
no
ur
s
a
t
U
ni
v
e
r
s
i
t
i
K
e
b
a
ng
s
a
a
n
M
a
l
a
y
s
i
a
i
n
2002
be
f
o
r
e
o
bt
a
i
n
i
ng
he
r
M
a
s
t
e
r
‟
s
D
e
g
r
e
e
i
n
E
l
e
c
t
r
o
ni
c
E
ng
i
n
e
e
r
i
ng
(
M
i
c
r
o
e
l
e
c
t
r
o
ni
c
s
)
a
t
K
o
l
e
j
U
n
i
v
e
r
s
i
t
i
T
un
H
us
s
e
i
n
O
nn
M
a
l
a
y
s
i
a
i
n
2005
.
S
he
t
h
e
n
c
o
m
pl
e
t
e
d
he
r
P
h
.
D
i
n
t
h
e
f
i
e
l
d
o
f
E
l
e
c
t
r
o
ni
c
E
ng
i
ne
e
r
i
ng
a
t
M
a
s
s
e
y
U
ni
v
e
r
s
i
t
y
,
N
e
w
Z
e
a
l
a
nd
i
n
2
014
.
S
he
i
s
a
c
ur
r
e
n
t
l
y
w
o
r
ki
ng
a
s
a
s
e
n
i
o
r
l
e
c
t
ur
e
r
a
t
t
he
D
e
p
a
r
t
m
e
n
t
o
f
E
l
e
c
t
r
o
n
i
c
E
ng
i
ne
e
r
i
ng
,
F
a
c
ul
t
y
of
E
l
e
c
t
r
i
c
a
l
a
nd
E
l
e
c
t
r
o
ni
c
E
ng
i
ne
e
r
i
ng
,
U
n
i
v
e
r
s
i
t
i
T
un
H
us
s
e
i
n
O
nn
M
a
l
a
y
s
i
a
(
U
T
H
M
)
.
S
he
ha
s
pub
l
i
s
h
e
d
s
e
v
e
r
a
l
r
e
s
e
a
r
c
h
pa
pe
r
s
i
n
i
n
t
e
r
na
t
i
o
na
l
j
o
ur
n
a
l
s
a
nd
c
o
n
f
e
r
e
nc
e
s
t
ha
t
c
o
v
e
r
v
a
r
i
o
us
r
e
s
e
a
r
c
h
a
r
e
a
s
s
uc
h
a
s
D
i
g
i
t
a
l
,
A
na
l
o
g
I
nt
e
g
r
a
t
e
d
C
i
r
c
ui
t
D
e
s
i
g
n
a
nd
V
L
S
I
D
e
s
i
g
n.
H
e
r
c
ur
r
e
nt
f
i
e
l
ds
o
f
r
e
s
e
a
r
c
h
i
nt
e
r
e
s
t
s
a
r
e
I
C
de
s
i
g
n,
l
o
w
po
w
e
r
V
L
S
I
c
i
r
c
ui
t
de
s
i
g
n,
c
r
y
pt
og
r
a
phy
c
o
-
pr
o
c
e
s
s
o
r
,
S
o
C
,
l
o
w
po
w
e
r
di
g
i
t
a
l
s
y
s
t
e
m
a
nd
A
S
I
C
/
F
P
G
A
de
s
i
g
n.
S
he
i
s
a
l
s
o
a
m
e
m
be
r
o
f
t
he
B
o
a
r
d
o
f
E
ng
i
ne
e
r
s
M
a
l
a
y
s
i
a
(
B
E
M
)
,
I
E
E
E
,
I
E
E
E
C
i
r
c
ui
t
a
nd
I
E
E
E
Y
o
ung
P
r
o
f
e
s
s
i
o
na
l
s
.
S
i
t
i
H
aw
a
R
u
s
l
an
i
s
c
ur
r
e
n
t
l
y
a
n
a
s
s
o
c
i
a
t
e
pr
o
f
e
s
s
o
r
a
t
t
h
e
D
e
p
a
r
t
m
e
n
t
o
f
E
l
e
c
t
r
o
ni
c
E
ng
i
ne
e
r
i
ng
,
F
a
c
ul
t
y
o
f
E
l
e
c
t
r
i
c
a
l
a
nd
E
l
e
c
t
r
o
ni
c
E
ng
i
ne
e
r
i
ng
,
U
ni
v
e
r
s
i
t
i
T
un
H
us
s
e
i
n
O
nn
M
a
l
a
y
s
i
a
(
U
T
H
M
)
.
S
he
r
e
c
e
i
v
e
d
he
r
B
a
c
he
l
o
r
‟
s
D
e
g
r
e
e
o
f
S
c
i
e
nc
e
i
n
E
l
e
c
t
r
i
c
a
l
E
ng
i
n
e
e
r
i
ng
a
t
t
he
U
n
i
v
e
r
s
i
t
y
of
M
i
a
m
i
,
F
l
o
r
i
d
a
i
n
1
987
be
f
o
r
e
c
o
m
pl
e
t
i
ng
he
r
M
a
s
t
e
r
s
i
n
t
h
e
f
i
e
l
d
o
f
E
l
e
c
t
r
i
c
a
l
E
ng
i
ne
e
r
i
ng
a
t
U
ni
v
e
r
s
i
t
i
T
e
kno
l
o
g
i
M
a
l
a
y
s
i
a
i
n
199
1.
S
he
ha
s
p
ub
l
i
s
he
d
s
e
v
e
r
a
l
r
e
s
e
a
r
c
h
pa
pe
r
s
i
n
i
n
t
e
r
na
t
i
o
na
l
j
o
ur
n
a
l
s
a
nd
c
o
nf
e
r
e
nc
e
s
t
ha
t
m
o
s
t
l
y
r
e
v
o
l
v
e
a
r
o
und
di
g
i
t
a
l
a
nd
a
n
a
l
o
g
i
nt
e
g
r
a
t
e
d
c
i
r
c
ui
t
d
e
s
i
g
ns
.
H
e
r
c
ur
r
e
n
t
f
i
e
l
ds
o
f
r
e
s
e
a
r
c
h
i
nt
e
r
e
s
t
s
a
r
e
I
C
de
s
i
g
n,
l
o
w
po
w
e
r
V
L
S
I
c
i
r
c
ui
t
de
s
i
g
n,
a
s
w
e
l
l
a
s
d
e
v
i
c
e
m
o
de
l
l
i
ng
a
nd
s
i
m
u
l
a
t
i
o
n.
S
h
e
i
s
p
r
e
s
e
n
t
l
y
a
s
e
ni
o
r
m
e
m
be
r
o
f
I
E
E
E
.
Evaluation Warning : The document was created with Spire.PDF for Python.