Gaya APA
Kotler, Philip. (1987).
Principles of marketing (3e).
New Delhi:
Prentice Hall of India.
Gaya Chicago
Kotler, Philip.
Principles of marketing.
3e
New Delhi:
Prentice Hall of India,
1987.
Buku.
Gaya MLA
Kotler, Philip.
Principles of marketing.
3e
New Delhi:
Prentice Hall of India,
1987.
Buku.
Gaya Turabian
Kotler, Philip.
Principles of marketing.
3e
New Delhi:
Prentice Hall of India,
1987.
Buku.