Gaya APA
Zikmund, William G.. (2000).
Business research methods 6th ed (6).
Fort Worth:
Harcourt College.
Gaya Chicago
Zikmund, William G..
Business research methods 6th ed.
6
Fort Worth:
Harcourt College,
2000.
Text.
Gaya MLA
Zikmund, William G..
Business research methods 6th ed.
6
Fort Worth:
Harcourt College,
2000.
Text.
Gaya Turabian
Zikmund, William G..
Business research methods 6th ed.
6
Fort Worth:
Harcourt College,
2000.
Print.