Gaya APA
Geographic, N. (2016).
National Geographic Indonesia : Orangutan (Vol. 12 No. 12 Desember 2016).
Jakarta:
Gramedia.
Gaya MLA
Geographic, National.
"National Geographic Indonesia : Orangutan".
Vol. 12 No. 12 Desember 2016
Jakarta:
Gramedia,
2016.
Text.