Gaya APA

Luan, K, S. (2010). Science 3B: Activiy Book (3B SD International Edition). Singapore: Marshall Cavendish, 2003.

Gaya MLA

Luan, Koh, Siew. "Science 3B: Activiy Book". 3B SD International Edition Singapore: Marshall Cavendish, 2003, 2010. .