Kumar, R., & Owen, A. (2019). Research methodology: A step-by-step guide for beginners (Fifth edition.). SAGE Publications.
Chicago Style (17th ed.) ZitazioaKumar, Ranjit, eta Aly Owen. Research Methodology: A Step-by-step Guide for Beginners. Fifth edition. Los Angeles: SAGE Publications, 2019.
MLA (9th ed.) ZitazioaKumar, Ranjit, eta Aly Owen. Research Methodology: A Step-by-step Guide for Beginners. Fifth edition. SAGE Publications, 2019.
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