Cooper, D. R., Schindler, P. S., & Sharma, J. K. (2014). Business Research Methods (11th ed.). McGraw Hill Education (India) Pvt. Ltd.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCooper, Donald R., Pamela S. Schindler, और J. K. Sharma. Business Research Methods. 11th ed. New Delhi: McGraw Hill Education (India) Pvt. Ltd, 2014.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCooper, Donald R., et al. Business Research Methods. 11th ed. McGraw Hill Education (India) Pvt. Ltd, 2014.
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