Gaya APA

Sum, L, S, H, T, P, H, Y, Y. (2008). Math Insights Secondary 1A Normal [Academic] . Singapore: Pearson Education South Asia Pte Ltd.

Gaya MLA

Sum, Lim, Siew, Hoon, Teo, Peck, Hoon, Yang, Yet. "Math Insights Secondary 1A Normal [Academic]". Singapore: Pearson Education South Asia Pte Ltd, 2008. .