http://repository.uhamka.ac.id/id/eprint/10155/
Iba, Khairil
http://repository.uhamka.ac.id/id/eprint/10155/1/PTK%206E.pdf
http://repository.uhamka.ac.id/id/eprint/10155/
Iba, Khairil
http://repository.uhamka.ac.id/id/eprint/10155/1/PTK%206E.pdf