Lua APA (7ú heag.)

Cooper, D. R., & Schindler, P. S. (2006). Business research methods (9th ed.). McGraw-Hill.

Lua i Stíl Chicago (17ú heag.)

Cooper, Donald R., agus Pamela S. Schindler. Business Research Methods. 9th ed. New Delhi: McGraw-Hill, 2006.

Lua MLA (9ú heag.)

Cooper, Donald R., agus Pamela S. Schindler. Business Research Methods. 9th ed. McGraw-Hill, 2006.

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