Kumar,Ranajit. (2014). Research Methodology: A Step-by-Step Guide for Beginners (2nd edition.). Pearson.
Tohutoru Kātū Chicago (17th ed.)Kumar,Ranajit. Research Methodology: A Step-by-Step Guide for Beginners. 2nd edition. New Delhi: Pearson, 2014.
Tohutoro MLA (9th ed.)Kumar,Ranajit. Research Methodology: A Step-by-Step Guide for Beginners. 2nd edition. Pearson, 2014.
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