Singh, M. L. (2003). Understanding research methodology: What?, When?, How? (Third.). J.M.Singh.
Čikaški stil citiranja (17. izdanje)Singh, Mrigendra Lal. Understanding Research Methodology: What?, When?, How? Third. Kathmandu: J.M.Singh, 2003.
MLA način citiranja (8. izdanje)Singh, Mrigendra Lal. Understanding Research Methodology: What?, When?, How? Third. J.M.Singh, 2003.
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