interview
designing
researcher
final
word
result
registration
student
text
wa
need
validated
collecting
medan
research
application
program
development
get
writing
educational
key
ABSTRACT
media
questionnaire
subject
study
prove
english
clas
gathering
cikita
gathered
screencast
data
after
conducted
revising
respondent
material
information
matic
distributing
state
teaching
analyzing
six
validating
expert
product
design
using
213212105
university
2017
anlyzing
installed
number
developing
recount
veronika
android
got
through
thesi
school
computer
instrumentation
stage
junior
aim
VIII
SMPN32
administering
high