Gaya APA

Koh, S. (2005). Science Companion [Jilid 3] (Ed. 2. Cet. 2.--). Singapore: Marshall Cavendish.

Gaya MLA

Koh, Susanna. "Science Companion [Jilid 3]". Ed. 2. Cet. 2.-- Singapore: Marshall Cavendish, 2005. Text.