http://repository.uhamka.ac.id/id/eprint/12140/
6._2019.11.23 Jurnal IJICC Andorid.pdf Turnitin
RIZKI DWI SISWANTO, RDS
http://repository.uhamka.ac.id/id/eprint/12140/1/6._2019.11.23_Jurnal_IJICC_Andorid.pdf_%20%28diturnitin%20setelah%20terbit%29.pdf