Gaya APA
Kotler, P., Keller, K, L. (2009).
Marketing management (13th edition) (13th edition).
New Jersey:
Prentice Hall.
Gaya MLA
Kotler, Philip., Keller, Kevin, Lane.
"Marketing management (13th edition)".
13th edition
New Jersey:
Prentice Hall,
2009.
Text.