APA Style
Keng, S, T. et al (2007).
New Syllabus Mathematics Workbook 3 (Alternative Assessment and CD include) (Revised Edition).
Singapore:
Shinglee Publishers.
MLA Style
Keng, Seng, Teh. et al.
"New Syllabus Mathematics Workbook 3 (Alternative Assessment and CD include)".
Revised Edition
Singapore:
Shinglee Publishers,
2007.
Reference.