Kumar, R. (2011). Research Methodology (3rd ed.). Sage Publications India Pvt. Ltd.
Chicago Style (17. basım) AtıfKumar, Ranjit. Research Methodology. 3rd ed. New Delhi: Sage Publications India Pvt. Ltd, 2011.
MLA (9th ed.) AtıfKumar, Ranjit. Research Methodology. 3rd ed. Sage Publications India Pvt. Ltd, 2011.
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