Kothari, C., & Garg,Gaurav. (2019). Research methodology: Methods and techniques. New Age International Limited.
Lua i Stíl Chicago (17ú heag.)Kothari, C., agus Garg,Gaurav. Research Methodology: Methods and Techniques. London: New Age International Limited, 2019.
Lua MLA (9ú heag.)Kothari, C., agus Garg,Gaurav. Research Methodology: Methods and Techniques. New Age International Limited, 2019.
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