Gaya APA
Kheong, F, H. (2007).
Maths 1B Workbook Part 1 (1B SD 2nd Edition).
Singapore:
Federal Marhsall Cavendish Education.
Gaya MLA
Kheong, Fong, Ho.
"Maths 1B Workbook Part 1".
1B SD 2nd Edition
Singapore:
Federal Marhsall Cavendish Education,
2007.
.