Devi, P. S. (2017). Research Methodology: A Handbook for beginners. Notion Press.
Lua i Stíl Chicago (17ú heag.)Devi, Pagadala Suganda. Research Methodology: A Handbook for Beginners. Notion Press, 2017.
Lua MLA (9ú heag.)Devi, Pagadala Suganda. Research Methodology: A Handbook for Beginners. Notion Press, 2017.
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