Dyfyniad APA

Cooper, D. R. (2014). Business Research Methods Twelfth Edition. McGraw Hill Education.

Dyfyniad Arddull Chicago

Cooper, Donald R. Business Research Methods Twelfth Edition. McGraw Hill Education, 2014.

Dyfyniad MLA

Cooper, Donald R. Business Research Methods Twelfth Edition. McGraw Hill Education, 2014.

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