Kumar,Ranjit. (2014). Research methodology: A step-by-step guide for beginners (4th.). Sage.
Chicago Style (17. basım) AtıfKumar,Ranjit. Research Methodology: A Step-by-step Guide for Beginners. 4th. New Delhi: Sage, 2014.
MLA (9th ed.) AtıfKumar,Ranjit. Research Methodology: A Step-by-step Guide for Beginners. 4th. Sage, 2014.
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