Gaya APA

Grimnamu, ., Novianti, E, N. (2014). Why? People : Warren Buffett (Cet. 1.--). Jakarta: Elex Media Komputindo.

Gaya MLA

Grimnamu, ., Novianti, Endah, Nawang. "Why? People : Warren Buffett". Cet. 1.-- Jakarta: Elex Media Komputindo, 2014. Text.