Gaya APA
T., C., V., L., B., H. (1986).
Business research methods / Vernon T. Clover, Howard L. Balsley (Ed.ke-3).
Ohio:
Grid Publishing.
Gaya MLA
Clover, Vernon, T.., Balsley, Howard, L..
"Business research methods / Vernon T. Clover, Howard L. Balsley".
Ed.ke-3
Ohio:
Grid Publishing,
1986.
Textbook.