APA Style

Park, S., Novianti, E, N. (2017). Why ? The social contract (Rousseau) . Jakarta: PT Elex Media Komputindo.

MLA Style

Park, Sejun., Novianti, Endah, Nawang. "Why ? The social contract (Rousseau)". Jakarta: PT Elex Media Komputindo, 2017. Buku SMP Athalia.