http://repository.uhamka.ac.id/id/eprint/10139/
Oktarina Dwi, Handayani
http://repository.uhamka.ac.id/id/eprint/10139/1/Laporan%20final.pdf
http://repository.uhamka.ac.id/id/eprint/10139/
Oktarina Dwi, Handayani
http://repository.uhamka.ac.id/id/eprint/10139/1/Laporan%20final.pdf