Gaya APA

Grimnamu, ., Novianti, E, N. (2012). Why? Establishment and Advancement of Europe (-). Jakarta: PT Elex Media Komputindo.

Gaya MLA

Grimnamu, ., Novianti, Endah, Nawang. "Why? Establishment and Advancement of Europe". - Jakarta: PT Elex Media Komputindo, 2012. Text.