Gaya APA
Ryeol, K., S. et al. (2011).
Why? Origin of Humankind and Civilization (Asal Mula Manusia dan Peradaban) .
Jakarta:
Elex Media Komputindo.
Gaya MLA
Ryeol, K., S. et al..
Why? Origin of Humankind and Civilization (Asal Mula Manusia dan Peradaban).
Jakarta:
Elex Media Komputindo,
2011.
Text.