Gaya APA

Kotler, Philip, Armstrong, Gary. (2012). Principles of marketing, 14th Ed. (14th. Ed.). Singapore: Pearson Education Int..

Gaya Chicago

Kotler, Philip, Armstrong, Gary. Principles of marketing, 14th Ed.. 14th. Ed. Singapore: Pearson Education Int., 2012. Text.

Gaya MLA

Kotler, Philip, Armstrong, Gary. Principles of marketing, 14th Ed.. 14th. Ed. Singapore: Pearson Education Int., 2012. Text.

Gaya Turabian

Kotler, Philip, Armstrong, Gary. Principles of marketing, 14th Ed.. 14th. Ed. Singapore: Pearson Education Int., 2012. Print.