Gaya APA

Becklake,dkk, S., H.Pambudi, D. (2015). Book of Knowledge Negara-Negara . : Pakar Raya.

Gaya MLA

Becklake,dkk, Sue., H.Pambudi, Didik. "Book of Knowledge Negara-Negara". : Pakar Raya, 2015. Text.