Cooper, D. R., & Schindler, P. S. (2006). Business research methods (9th ed.). Tata McGraw-Hill.
Chicago Edition CitationCooper, Donald R., i Pamela S. Schindler. Business Research Methods. 9th ed. New Delhi: Tata McGraw-Hill, 2006.
Cita MLACooper, Donald R., i Pamela S. Schindler. Business Research Methods. 9th ed. Tata McGraw-Hill, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.