Dyfyniad APA

Cooper, D. R. (2001). Business research methods (7th ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Cooper, Donald R. Business Research Methods. 7th ed. New York: McGraw-Hill, 2001.

Dyfyniad MLA

Cooper, Donald R. Business Research Methods. 7th ed. McGraw-Hill, 2001.

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