Gaya APA
Nugraha, B, D.
(2013).
It's All About Sex: A-Z Tentang Seks
.
Jakarta:
Bumi Aksara.
Gaya MLA
Nugraha, Boyke, Dian.
"It's All About Sex: A-Z Tentang Seks".
Jakarta:
Bumi Aksara,
2013.
textbook.