APA Style
Cooper, D, R., Emory, C, W.
(1995).
Business Research Methods 5 ed.
(
5)
.
Chicago:
Irwin Publishing.
MLA Style
Cooper, Donald, R., Emory, C., William.
"Business Research Methods 5 ed.".
5
Chicago:
Irwin Publishing,
1995.
Ilmu Komunikasi.