Gaya APA

Papyrus, ., Novianti, E, N. (2011). Why?: The Reptiles and Amphibian (Reptilia dan Amfibi) . Jakarta: PT Elex Media Komputindo.

Gaya MLA

Papyrus, ., Novianti, Endah, Nawang. "Why?: The Reptiles and Amphibian (Reptilia dan Amfibi)". Jakarta: PT Elex Media Komputindo, 2011. Text.