Gaya APA
Iskandar, Y., 2016-12-19, .
().
429110515
(
Textbook)
.
400:
2016-12-19.
Gaya MLA
Iskandar, Yul., 2016-12-19, .
"429110515".
Textbook
400:
2016-12-19,
.
410 CHA r.