Gaya APA

PH.D, N, S, F., Choo, M. (2010). Maths Alive! ; Workbook 4B (1). Singapore: Pearson Education South Asia Pte.Ltd.

Gaya MLA

PH.D, Ng, Swee, Fong., Choo, Michelle. "Maths Alive! ; Workbook 4B". 1 Singapore: Pearson Education South Asia Pte.Ltd, 2010. Text.