Dyfyniad APA

Cooper, D. R., & Schindler, P. S. (2011). Business research methods (11th ed.). McGraw-Hill Irwin.

Dyfyniad Arddull Chicago

Cooper, Donald R., and Pamela S. Schindler. Business Research Methods. 11th ed. Boston: McGraw-Hill Irwin, 2011.

Dyfyniad MLA

Cooper, Donald R., and Pamela S. Schindler. Business Research Methods. 11th ed. McGraw-Hill Irwin, 2011.

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