Gaya APA

Ang, P, K, G, A, S, H. (2014). Principles Of Marketing : A Global Perspective (-). Singapore: PEARSON Prentice Hall.

Gaya MLA

Ang, Philip, Kotler,, Gary, Armstrong,, Swee, Hoon. "Principles Of Marketing : A Global Perspective". - Singapore: PEARSON Prentice Hall, 2014. Text.