Gaya APA

Kotler, P., Armstrong, G. (1994). Principles of marketing / Philip Kotler, Gary Armstrong (Ed.ke-6). New Jersey: Prentice-Hall.

Gaya MLA

Kotler, Philip., Armstrong, Gary. "Principles of marketing / Philip Kotler, Gary Armstrong". Ed.ke-6 New Jersey: Prentice-Hall, 1994. Skripsi.