Gaya APA
Armstrong, G., Kottler, P.
(2000).
Marketing An Introduction
(
Fift Edition)
.
Sebastopol, CA:
Prentice Hall.
Gaya MLA
Armstrong, Gary., Kottler, Philip.
"Marketing An Introduction".
Fift Edition
Sebastopol, CA:
Prentice Hall,
2000.
Text.