Gaya APA
MALHOTRA, N, K.
(2004).
Marketing research:
(
4th ed.)
.
Upper Saddle River, New Jersey:
Prentice-Hall.
Gaya MLA
MALHOTRA, Naresh, K..
"Marketing research:".
4th ed.
Upper Saddle River, New Jersey:
Prentice-Hall,
2004.
Buku.