Singh, M. L. (2003). Understanding research methodology: What?, When?, How? (Third.). J.M.Singh.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSingh, Mrigendra Lal. Understanding Research Methodology: What?, When?, How? Third. Kathmandu: J.M.Singh, 2003.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSingh, Mrigendra Lal. Understanding Research Methodology: What?, When?, How? Third. J.M.Singh, 2003.
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