Gaya APA
Darmawan, A., 2017-09-19, .
().
1230920917
(
Textbook)
.
500:
2017-09-19.
Gaya MLA
Darmawan, Agus., 2017-09-19, .
"1230920917".
Textbook
500:
2017-09-19,
.
543.17 NOG k.