Cita APA (7th ed.)
Kumar, R. Research methodology: A step-by-step guide for beginners. Sage.
Cita Chicago (17th ed.)
Kumar, Ranjit. Research Methodology: A Step-by-step Guide for Beginners. Sage.
Cita MLA (9th ed.)
Kumar, Ranjit. Research Methodology: A Step-by-step Guide for Beginners. Sage.
Atenció: Aquestes cites poden no estar 100% correctes.