Gaya APA

Gomdori.Co, ., Wildana, I. (2012). Survival 21: Virus 2 (ed. 2, cet. 1). Jakarta: Elex Media Komputindo.

Gaya MLA

Gomdori.Co, ., Wildana, Iwan. "Survival 21: Virus 2". ed. 2, cet. 1 Jakarta: Elex Media Komputindo, 2012. Text.