Gaya APA

Kheong, D, F, H. (2008). My Pals are Here! Maths Workbook 5A (second). Singapore: Marshall Cavendish Education.

Gaya MLA

Kheong, Dr, Fong, Ho. "My Pals are Here! Maths Workbook 5A". second Singapore: Marshall Cavendish Education, 2008. Text.