Gaya APA
Kotler, Philip, Armstrong, Gary. (1994).
Principles of marketing, 6th ed. (6th. ed.).
New Jersey:
Prentice Hall.
Gaya Chicago
Kotler, Philip, Armstrong, Gary.
Principles of marketing, 6th ed..
6th. ed.
New Jersey:
Prentice Hall,
1994.
Text.
Gaya MLA
Kotler, Philip, Armstrong, Gary.
Principles of marketing, 6th ed..
6th. ed.
New Jersey:
Prentice Hall,
1994.
Text.
Gaya Turabian
Kotler, Philip, Armstrong, Gary.
Principles of marketing, 6th ed..
6th. ed.
New Jersey:
Prentice Hall,
1994.
Print.