Gaya APA
dkk, H, J, W, M.
(2010).
Essentials of Marketing Research. Ed.2
(
2)
.
America:
Mc Graw Hill.
Gaya MLA
dkk, Hair, Joseph;, Wolfinbarger, Mary.
"Essentials of Marketing Research. Ed.2".
2
America:
Mc Graw Hill,
2010.
Text.