Gaya APA

sweetspot, ., Novianti, E, N. (2015). Why ? People : Richard Feyman (Cetakan 1). Jakarta: PT Elex Media Koputindo.

Gaya MLA

sweetspot, ., Novianti, Endang, Nawang. "Why ? People : Richard Feyman". Cetakan 1 Jakarta: PT Elex Media Koputindo, 2015. Text.