Kothari, C. R. (2020). Research methodology (4th.). New Age International Publisher, New Delhi.
Cita Chicago (17th ed.)Kothari, C. R. Research Methodology. 4th. New Age International Publisher, New Delhi, 2020.
Cita MLA (9th ed.)Kothari, C. R. Research Methodology. 4th. New Age International Publisher, New Delhi, 2020.
Atenció: Aquestes cites poden no estar 100% correctes.