Gaya APA
Zikmund, William G.. (1991).
Business research methods (3rd. ed.).
San Diego,California:
The Dryden Press.
Gaya Chicago
Zikmund, William G..
Business research methods.
3rd. ed.
San Diego,California:
The Dryden Press,
1991.
.
Gaya MLA
Zikmund, William G..
Business research methods.
3rd. ed.
San Diego,California:
The Dryden Press,
1991.
.
Gaya Turabian
Zikmund, William G..
Business research methods.
3rd. ed.
San Diego,California:
The Dryden Press,
1991.
.