Bell, J. (2010). Doing Your Research Project (5th.). Open University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBell, Judith. Doing Your Research Project. 5th. Maidenhead: Open University Press, 2010.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBell, Judith. Doing Your Research Project. 5th. Open University Press, 2010.
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