Kothari, C. R. (2020). Research methodology (4th.). New Age International Publisher, New Delhi.
Cita Chicago Style (17a ed.)Kothari, C. R. Research Methodology. 4th. New Age International Publisher, New Delhi, 2020.
Cita MLA (9a ed.)Kothari, C. R. Research Methodology. 4th. New Age International Publisher, New Delhi, 2020.
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