APA Style

Indonesia, N, G. (2006). National Geographic Indonesia: Demam Emas Bulgaria (Vol. 2 No. 12; Desember 2006). Jakarta: Gramedia.

MLA Style

Indonesia, National, Geographic. "National Geographic Indonesia: Demam Emas Bulgaria". Vol. 2 No. 12; Desember 2006 Jakarta: Gramedia, 2006. Printed Book.