Gaya APA

KOTLER, P., ARMSTRONG, G. (2001). PRINCIPLES OF MARKETING, 9th.EDITION (9th. EDITION). NEW JERSEY: PRENTICE-HALL INTERNATIONAL, Inc.

Gaya MLA

KOTLER, PHILIP., ARMSTRONG, GARY. "PRINCIPLES OF MARKETING, 9th.EDITION". 9th. EDITION NEW JERSEY: PRENTICE-HALL INTERNATIONAL, Inc, 2001. Prodi S1 Manajemen.