Gaya APA

C.Jr, W, ,. et al (2003). Marketing Strategy A Decision-Focused Approach (Fourth). Yogyakarta: Salemba Empat.

Gaya MLA

C.Jr, Walker, ,Orville. et al. "Marketing Strategy A Decision-Focused Approach". Fourth Yogyakarta: Salemba Empat, 2003. Text.