Gaya APA
Zikmund, William G. (1994).
Business research methods (4e).
Fort Worth:
The Dryden Press.
Gaya Chicago
Zikmund, William G.
Business research methods.
4e
Fort Worth:
The Dryden Press,
1994.
Buku.
Gaya MLA
Zikmund, William G.
Business research methods.
4e
Fort Worth:
The Dryden Press,
1994.
Buku.
Gaya Turabian
Zikmund, William G.
Business research methods.
4e
Fort Worth:
The Dryden Press,
1994.
Buku.