Gaya APA
Zikmund, William G. (1997).
Business research methods (5e).
Fort Worth:
The Dryden Press.
Gaya Chicago
Zikmund, William G.
Business research methods.
5e
Fort Worth:
The Dryden Press,
1997.
Buku.
Gaya MLA
Zikmund, William G.
Business research methods.
5e
Fort Worth:
The Dryden Press,
1997.
Buku.
Gaya Turabian
Zikmund, William G.
Business research methods.
5e
Fort Worth:
The Dryden Press,
1997.
Buku.