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D
a
t
a
t
a
ke
n
f
r
o
m
s
c
h
o
o
l
do
c
um
e
n
t
s
a
r
e
us
e
d
a
s
a
r
e
f
e
r
e
n
c
e
t
o
de
c
i
de
o
n
s
t
ude
nt
pe
r
f
o
r
m
a
n
c
e
a
n
d
i
nt
e
r
v
i
e
w
v
a
l
ue
s
a
r
e
t
a
ke
n
f
r
o
m
t
h
e
que
s
t
i
o
n
a
n
d
a
n
s
w
e
r
pr
o
c
e
s
s
t
o
t
h
e
t
e
a
c
h
e
r
s
i
n
v
o
l
v
e
d
i
n
s
t
ude
n
t
a
c
t
i
v
i
t
i
e
s
.
T
h
i
s
r
e
s
e
a
r
c
h
w
a
s
c
o
n
duc
t
e
d
a
t
l
e
v
e
l
X
,
X
I,
a
n
d
X
II
O
dd
s
e
m
e
s
t
e
r
2019/
2020
A
c
a
de
m
i
c
y
e
a
r
a
t
S
M
K
N
e
ge
r
i
1
K
r
a
gi
l
a
n
D
i
s
t
ri
c
t
,
b
y
e
n
t
e
r
i
ng
s
o
m
e
s
t
ude
nt
d
a
t
a
s
a
m
pl
e
s
t
o
do
a
s
a
m
pl
e
.
I
n
p
r
e
v
i
o
us
s
t
udi
e
s
t
ha
t
t
h
e
e
xi
s
t
e
n
c
e
of
a
c
o
m
pl
e
x
s
y
s
t
e
m
i
n
p
r
e
d
i
c
t
i
n
g
s
t
ude
nt
pe
r
f
o
r
m
a
n
c
e
c
a
n
m
a
i
nt
a
i
n
t
h
e
a
b
i
l
i
t
y
/
a
c
hi
e
v
e
m
e
n
t
o
f
s
t
ude
nt
s
,
e
n
s
u
r
e
t
ha
t
s
t
ude
n
t
s
g
r
a
dua
t
e
o
n
t
i
m
e
,
a
n
d
e
n
s
u
r
e
t
h
e
a
b
i
l
i
t
y
of
s
t
ude
nt
s
a
c
c
o
r
di
n
g
t
o
t
h
e
f
i
e
l
d
t
a
ke
n
[3
-
4]
.
T
h
e
p
r
o
b
l
e
m
t
h
a
t
i
s
o
f
t
e
n
f
a
c
e
d
w
h
e
n
s
c
h
o
o
l
s
do
t
h
e
s
e
l
e
c
t
i
o
n
o
f
h
i
g
h
-
a
c
h
i
e
v
i
ng
s
t
ude
nt
s
o
f
t
e
n
c
h
o
o
s
e
s
t
h
e
b
e
s
t
s
t
ude
n
t
s
o
r
a
c
h
i
e
v
e
r
s
o
n
l
y
by
us
i
n
g
t
h
e
h
i
g
h
e
s
t
g
ra
de
r
e
po
r
t
c
a
rd
[5
-
6].
I
n
f
a
c
t
,
i
n
t
h
e
da
i
l
y
a
c
t
i
v
i
t
i
e
s
o
f
s
t
ude
nt
s
m
a
n
y
t
h
i
n
gs
c
a
n
b
e
us
e
d
a
s
a
ddi
t
i
o
na
l
v
a
l
ue
s
a
s
e
xpl
a
i
n
e
d
i
n
t
h
e
i
n
t
r
o
duc
t
i
o
n
,
na
m
e
l
y
:
a.
A
v
e
r
a
ge
r
e
po
r
t
c
a
r
d
g
r
a
de
,
w
h
i
c
h
w
a
s
ob
t
a
i
n
e
d
by
s
t
ude
n
t
s
a
f
t
e
r
do
i
n
g
t
h
e
l
e
a
rn
i
ng
pr
o
c
e
s
s
fo
r
o
n
e
s
e
m
e
s
t
e
r
.
b.
A
b
s
e
n
t
e
e
i
s
m
v
a
l
ue
,
w
hi
c
h
w
a
s
t
a
ke
n
f
r
o
m
s
t
u
de
nt
a
t
t
e
n
da
n
c
e
da
t
a
du
ri
n
g
t
h
e
O
dd
s
e
m
e
s
t
e
r
l
e
a
rn
i
ng
pr
o
c
e
s
s
.
c.
V
i
o
l
a
t
i
o
n
P
o
i
n
t
s
w
h
i
c
h
w
e
r
e
t
a
ke
n
f
r
o
m
S
t
u
de
nt
D
a
t
a
.
d.
E
xt
ra
c
u
rr
i
c
ul
a
r
V
a
l
ue
w
h
i
c
h
w
a
s
t
a
ke
n
f
r
o
m
E
xt
ra
c
u
rr
i
c
ul
a
r
T
r
us
t
e
e
da
t
a
.
e.
A
n
i
nt
e
r
v
i
e
w
w
h
i
c
h
w
a
s
ob
t
a
i
n
e
d
f
r
o
m
t
h
e
i
n
t
e
r
v
i
e
w
pr
o
c
e
s
s
w
i
t
h
t
h
e
S
uppo
r
t
i
n
g
T
e
a
c
h
e
r
s
i
n
v
o
l
ve
d
i
n
t
h
e
l
e
a
rni
n
g
p
r
o
c
e
s
s
.
W
i
t
h
t
h
e
b
a
c
kgr
o
u
n
d
o
f
t
h
i
s
p
r
o
b
l
e
m
,
t
h
e
r
e
s
e
a
r
c
h
w
a
s
c
o
n
duc
t
e
d
s
o
t
h
a
t
a
s
c
h
o
o
l
pr
i
n
c
i
p
a
l
o
r
r
e
l
a
t
e
d
p
a
r
t
y
c
o
ul
d
f
i
n
d
o
ut
t
h
e
pe
r
f
o
r
m
a
n
c
e
of
s
t
ude
n
t
s
w
ho
w
e
r
e
goo
d
a
n
d
w
h
o
w
e
r
e
v
e
r
y
l
ow
.
F
r
o
m
t
h
e
c
o
n
c
l
us
i
o
n
s
a
b
o
ve
i
t
c
a
n
b
e
c
o
n
c
l
ude
d
s
e
v
e
r
a
l
p
r
o
b
l
e
m
s
s
uc
h
a
s
a
p
ri
n
c
i
p
a
l
o
r
r
e
l
a
t
e
d
pa
rt
y
o
n
l
y
us
e
s
r
e
po
r
t
c
a
r
ds
t
o
de
t
e
rm
i
n
e
a
s
t
ude
n
t
'
s
pe
r
f
o
r
m
a
n
c
e
,
a
n
d
t
h
e
r
e
i
s
n
o
s
c
h
o
o
l
t
o
o
l
t
o
m
o
n
i
t
o
r
s
t
ude
n
t
pe
r
f
o
r
m
a
n
c
e
a
t
s
c
h
o
o
l
a
n
d
s
t
ude
n
t
s
do
n
o
t
ha
v
e
be
n
c
hm
a
r
ks
i
n
l
e
a
rn
i
ng
a
t
s
c
h
o
o
l
be
c
a
us
e
t
h
e
y
d
o
n
o
t
kn
o
w
t
h
e
i
r
o
v
e
r
a
l
l
a
b
i
l
i
t
i
e
s
a
t
s
c
h
o
o
l
[7
-
8].
T
hus
,
b
a
s
e
d
o
n
t
h
o
s
e
pr
o
b
l
e
m
s
t
h
e
pur
po
s
e
s
o
f
t
h
i
s
pa
pe
r
w
i
l
l
c
r
e
a
t
e
a
t
o
o
l
w
h
i
c
h
c
a
n
h
e
l
p
t
h
e
de
c
i
s
i
o
n
-
m
a
ke
r
i
n
m
a
ki
n
g
t
h
e
i
r
de
c
i
s
i
o
n
s
uc
h
a
s
t
h
e
s
c
h
oo
l
pr
i
n
c
i
p
a
l
o
r
r
e
l
a
t
e
d
pa
rt
y
c
a
n
k
n
o
w
t
h
e
pe
r
f
o
r
m
a
n
c
e
o
f
s
t
ude
n
t
s
i
n
s
c
h
o
o
l
pe
r
f
o
r
m
a
n
c
e
,
t
h
e
a
b
i
l
i
t
y
,
a
n
d
a
c
t
i
v
e
n
e
s
s
of
s
t
ude
n
t
s
c
a
n
b
e
c
o
n
t
r
o
l
l
e
d
by
t
h
e
s
c
h
o
o
l
,
a
n
d
b
e
a
b
e
n
c
h
m
a
r
k
f
o
r
s
t
ude
n
t
s
i
n
t
h
e
l
e
a
rni
n
g
pr
o
c
e
s
s
t
o
w
h
a
t
e
xt
e
nt
t
h
e
s
e
s
t
ude
n
t
s
t
a
ke
s
c
h
o
o
l
l
e
s
s
o
n
s
[9
-
10]
.
In
o
t
h
e
r
s
t
u
di
e
s
,
t
h
e
r
e
a
r
e
s
e
v
e
r
a
l
o
b
j
e
c
t
i
v
e
s
of
us
i
n
g
t
h
e
s
i
m
pl
e
a
ddi
t
i
v
e
w
e
i
gh
t
i
n
g
(S
A
W
)
m
e
t
h
o
d
i
n
c
l
udi
ng
i
m
p
r
o
v
i
ng
m
e
t
h
o
do
l
o
g
y
t
o
de
a
l
w
i
t
h
i
na
c
c
ura
c
i
e
s
i
n
m
ul
t
i
-
c
r
i
t
e
ri
a
de
c
i
s
i
o
n
m
a
ki
ng
by
pr
e
s
e
n
t
i
ng
a
n
e
w
S
A
W
Ro
ugh
m
e
t
h
o
d
a
l
go
ri
t
hm
[11]
.
A
pp
l
y
i
n
g
t
h
e
S
A
W
m
e
t
h
o
d
i
n
di
s
m
i
s
s
i
ng
da
n
c
e
r
s
m
e
m
b
e
r
s
b
a
s
e
d
o
n
t
h
e
a
ppl
i
c
a
t
i
o
n
c
r
i
t
e
ri
a
i
n
v
e
s
t
i
ga
t
e
d
b
y
t
h
e
s
c
h
o
o
l
,
c
a
m
pu
s
,
o
r
o
rga
ni
z
a
t
i
o
n
[1
2].
A
n
o
t
h
e
r
i
m
p
l
e
m
e
n
t
a
t
i
o
n
,
a
s
s
i
s
t
pa
r
e
n
t
s
i
n
c
h
o
o
s
i
n
g
h
e
a
l
t
h
y
foo
ds
fo
r
t
o
ddl
e
r
s
a
n
d
c
a
n
c
h
o
o
s
e
foo
ds
w
i
t
h
e
n
o
ugh
n
u
t
r
i
t
i
o
n
t
o
s
uppo
r
t
t
h
e
pe
ri
o
d
o
f
ph
y
s
i
c
a
l
a
n
d
b
ra
i
n
g
r
o
w
t
h
a
n
d
de
v
e
l
o
pm
e
n
t
i
n
t
o
ddl
e
r
s
/
b
a
b
i
e
s
a
t
go
l
de
n
a
ge
[13
-
14]
.
2.
R
ES
EA
R
C
H
M
ET
H
O
D
T
h
e
da
t
a
us
e
d
i
n
t
h
i
s
s
t
udy
a
r
e
a
r
c
h
i
v
a
l
da
t
a
f
r
o
m
t
h
e
S
M
K
N
e
g
e
r
i
1
K
ra
gi
l
a
n
,
w
h
i
c
h
i
n
c
l
ude
s
a
b
s
e
n
t
e
e
da
t
a
,
s
t
ude
nt
'
s
a
v
e
r
a
ge
r
e
po
rt
c
a
r
d
v
a
l
ue
da
t
a
,
e
xt
ra
c
urri
c
ul
a
r
s
c
o
r
e
da
t
a
,
s
t
ude
n
t
a
b
us
e
po
i
n
t
s
a
n
d
da
t
a
v
a
l
ue
r
e
s
ul
t
s
f
r
o
m
t
h
e
i
nt
e
r
v
i
e
w
pr
o
c
e
s
s
w
i
t
h
t
e
a
c
h
e
r
s
i
n
v
o
l
ve
d
i
n
d
a
i
l
y
l
e
a
rn
i
ng
t
h
e
s
t
ude
n
t
.
T
h
e
de
c
i
s
i
o
n
-
m
a
ki
n
g
p
r
o
c
e
s
s
i
n
t
hi
s
s
t
udy
us
e
d
m
a
t
h
e
m
a
t
i
c
a
l
c
a
l
c
ul
a
t
i
o
n
s
w
i
t
h
t
h
e
S
A
W
m
e
t
h
o
d,
w
h
e
r
e
t
h
e
de
c
i
s
i
o
n
-
m
a
ki
n
g
s
y
s
t
e
m
i
s
a
c
o
m
put
e
r
-
b
a
s
e
d
s
y
s
t
e
m
c
o
n
s
i
s
t
i
n
g
o
f
s
e
v
e
r
a
l
c
o
m
po
n
e
nt
s
i
n
c
l
udi
ng
s
y
s
t
e
m
l
a
n
gu
a
ge
c
o
m
po
n
e
nt
s
(l
a
n
gu
a
ge
),
s
y
s
t
e
m
c
o
m
po
n
e
n
t
s
o
f
kn
o
w
l
e
dge
(kn
o
w
l
e
dge
),
a
n
d
s
y
s
t
e
m
s
c
o
m
po
n
e
n
t
pr
o
c
e
s
s
i
n
g
p
r
o
b
l
e
m
s
[1
5
-
1
6]
.
T
a
ki
ng
a
s
y
s
t
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R
EF
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[
1]
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.
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.
L
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at
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n
,
v
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l
.
9
,
no
.
1
,
pp.
4
3
-
57,
20
16.
[
2]
C
.
G
bo
l
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n
at
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on
al
,
v
o
l
.
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pp
.
1
-
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,
2017
.
[
3]
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.
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y
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our
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ni
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)
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pp
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-
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[
4]
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I
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)
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o
l
.
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,
p
p.
21
-
2
9,
20
1
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[
5]
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.
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us
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[
6]
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.
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i
on
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ar
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h
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nt
e
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n
at
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on
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,
v
o
l
.
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8
pp.
1
-
8
,
2018
.
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7]
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.
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l
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n
,
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t
al
.
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at
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c
s
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v
o
l
.
1
18,
p
p.
9
-
16
,
2018
.
[
8]
W
.
Z
ha
ng
,
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m
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s
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ni
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n
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ur
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s
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n
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ur
s
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,
v
o
l
.
20
14,
p
p.
1
-
5
,
2
014
.
[
9]
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.
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o
s
s
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v
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n
at
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v
o
l
.
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5,
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.
1
-
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2
015
.
[
10]
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.
N
.
H
a
ki
m
,
e
t
a
l
.
,
“
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e
s
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g
n
a
nd
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m
p
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m
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t
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c
a
t
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l
s
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nt
e
r
n
at
i
on
al
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o
ur
n
al
o
f
E
l
e
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t
r
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c
al
a
nd
C
om
pu
t
e
r
E
n
gi
ne
e
r
i
n
g
(
I
J
E
C
E
)
,
v
o
l
.
8
,
pp
.
1067
-
10
73
,
2018
.
[
11]
Ž
.
S
t
e
v
i
c
,
e
t
al
.
,
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S
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l
e
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t
i
o
n
of
W
a
go
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o
r
t
he
I
nt
e
r
n
a
l
T
r
a
ns
p
o
r
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o
f
a
L
og
i
s
t
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c
s
C
o
m
pa
n
y
:
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m
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r
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,
v
o
l
.
9,
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.
1
-
25
,
2017
.
[
12]
H
.
A
de
l
a
,
e
t
al
.
,
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l
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nal
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g
&
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e
c
hno
l
og
y
,
v
o
l
.
7,
pp
.
109
6
-
1107
,
2018
.
[
13]
S
.
M
uko
di
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h
,
e
t
a
l
.
,
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uz
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m
at
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s
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v
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l
.
118
,
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1
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18.
[
14]
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om
p
ut
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r
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c
i
e
nc
e
,
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o
l
.
17
,
no
.
1
,
pp
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324
-
330
,
J
a
n
ua
r
y
2020
.
[
15]
M
.
M
us
l
i
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al
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16]
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.
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l
.
7,
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.
541
-
544
,
2017
.
[
18]
A
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.
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.
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ou
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na
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J
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19]
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.
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[
20]
S
.
A
ba
di
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.,
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7
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.
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18
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21]
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.
H
.
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hi
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,
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.
3,
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.
42
-
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,
201
7.
[
22]
W
.
W
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z
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a
na
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a
l
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,
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uz
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,
p
p.
93
-
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,
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[
23]
E
.
Y
.
A
ng
g
r
a
e
ni
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t
a
l
.
,
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p.
21
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-
224
,
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.
[
24]
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.
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.
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.
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ur
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a
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d
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um
ani
ty
,
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.
9
9
-
108
,
2015
.
[
25]
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.
J
a
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