BELL, J. (1998). Doing research project: A guide for first-time re-searchers in education and sosial science.-- ed.2. Open University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBELL, Judith. Doing Research Project: A Guide for First-time Re-searchers in Education and Sosial Science.-- Ed.2. Philadelphia: Open University Press, 1998.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBELL, Judith. Doing Research Project: A Guide for First-time Re-searchers in Education and Sosial Science.-- Ed.2. Open University Press, 1998.
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