Dr. Yeap Ban Har, Dr. Joseph B. W. Yeo, Dr. Choy Ban Heng, Teh Keng Seng, Wong Lai Fong, SharoN Lee, Ong Chan Hong. Think! New Syllabus Mathematics Workbook 2 8th Edition - oxford university press - 216 ISBN: 9789697349807 Dewey Class. No.: / T 510 yea