Gaya APA

Lovelock,Christopher, ., Wirtz, J. (2004). Services Marketing : People, Technology, Strategy (Ed.Fifth.). Singapura: pearson prentice hall.

Gaya MLA

Lovelock,Christopher, ., Wirtz, Jochen. "Services Marketing : People, Technology, Strategy". Ed.Fifth. Singapura: pearson prentice hall, 2004. Textbook.