Cooper, D. R., & Schindler, P. S. S. (2012). Business Research Methods (11th.). Tata McGraw Hill.
Cita Chicago (17th ed.)Cooper, Donald R., i Pamela S; Sharma Schindler. Business Research Methods. 11th. New Delhi: Tata McGraw Hill, 2012.
Cita MLA (9th ed.)Cooper, Donald R., i Pamela S; Sharma Schindler. Business Research Methods. 11th. Tata McGraw Hill, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.