Gaya APA

Heng, H, H. (2014). All About Mathematics : Learning Through Examples Secondary 2 Normal (Academic) . Singapore :: Pearson Education South Asia Pte Ltd.

Gaya MLA

Heng, Heng, Hwa. "All About Mathematics : Learning Through Examples Secondary 2 Normal (Academic)". Singapore :: Pearson Education South Asia Pte Ltd, 2014. Text.