Gaya APA
Wai, L, K., Yong, L, W. (2007).
Science In Focus Physics 'O' Level Practical Workbook: Teacher's Edition .
Singapore:
Pearson Longman.
Gaya MLA
Wai, Loo, Kwok., Yong, Loo, Wan.
"Science In Focus Physics 'O' Level Practical Workbook: Teacher's Edition".
Singapore:
Pearson Longman,
2007.
Book.