Kumar, R. (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. Sage, 2014.
MLA (9th ed.) AtıfKumar, Ranjit. Research Methodology A Step -by- Step Guide for Beginners. 4th. Sage, 2014.
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