Gaya APA

Leong, P, K, G, A, S, H, A, C, T, T, O, H, Y, S, M. (2017). Principles Of Marketing An Asian Perspective Fourth Edition (Fourth Edition). England: Pearson Education.

Gaya MLA

Leong, Philip, Kotler, Gary, Armstrong, Swee, Hoon, Ang, Chin, Tiong, Tan, Oliver, Hon-Ming, Yau, Siew, Meng. "Principles Of Marketing An Asian Perspective Fourth Edition". Fourth Edition England: Pearson Education, 2017. Text.