APA (7th ed.) Zitazioa
Kumar, R. Research methodology: A step-by-step guide for beginners. Sage.
Chicago Style (17th ed.) Zitazioa
Kumar, Ranjit. Research Methodology: A Step-by-step Guide for Beginners. Sage.
MLA (9th ed.) Zitazioa
Kumar, Ranjit. Research Methodology: A Step-by-step Guide for Beginners. Sage.
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