Gaya APA
Ortinau, D, J. et al
(2013).
Essentials Of Marketing Research
(
-)
.
Palangkaraya:
McGRAW HILL _2.
Gaya MLA
Ortinau, David, J.. et al.
"Essentials Of Marketing Research".
-
Palangkaraya:
McGRAW HILL _2,
2013.
Buku Teks.