Gaya APA

Payne, A., Tjitptono, F. (2007). the essence of service marketing : Pemasaran jasa (2 -). Yogyakarta: Andi Offset.

Gaya MLA

Payne, Adrian., Tjitptono, Fandi. "the essence of service marketing : Pemasaran jasa". 2 - Yogyakarta: Andi Offset, 2007. Text.