Gaya APA
K, A, E, C., 2017-09-12, .
().
1197110917
(
Textbook)
.
600:
2017-09-12.
Gaya MLA
K, Amalia, Eka, Candra., 2017-09-12, .
"1197110917".
Textbook
600:
2017-09-12,
.
615.321 pra 1.