Gaya APA

Leong, C. (1993). Problem-Solving Maths : Primary 6 (Ed. rev. Cet. 1.--). Singapore: Federal Publicatos.

Gaya MLA

Leong, Charles. "Problem-Solving Maths : Primary 6". Ed. rev. Cet. 1.-- Singapore: Federal Publicatos, 1993. Text.