APA Style

Patappa, R, S., Hartomo, N, A. (2010). Guk... Guk... . Jakarta: Erlangga For Kids.

MLA Style

Patappa, Rae, Sita., Hartomo, Nikki, Ayumurti. "Guk... Guk...". Jakarta: Erlangga For Kids, 2010. Printed Book.