Gaya APA

Kotler, Philip.,Gary Armstrong. (2012). Principles of marketing (14). Boston: Pearson Educational International.

Gaya Chicago

Kotler, Philip.,Gary Armstrong. Principles of marketing. 14 Boston: Pearson Educational International, 2012. Text.

Gaya MLA

Kotler, Philip.,Gary Armstrong. Principles of marketing. 14 Boston: Pearson Educational International, 2012. Text.

Gaya Turabian

Kotler, Philip.,Gary Armstrong. Principles of marketing. 14 Boston: Pearson Educational International, 2012. Print.