Kothari, C. G. (2020). Research Methodology (4th.). New Age International Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKothari, C.R Garg. Research Methodology. 4th. New Delhi: New Age International Publishers, 2020.
एमएलए (9वां संस्करण) प्रशस्ति पत्रKothari, C.R Garg. Research Methodology. 4th. New Age International Publishers, 2020.
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