Singh, J. (2007). Methodology and techniques of social research. Kanishka.
Tohutoru Kātū Chicago (17th ed.)Singh, Jaspal. Methodology and Techniques of Social Research. New York: Kanishka, 2007.
Tohutoro MLA (9th ed.)Singh, Jaspal. Methodology and Techniques of Social Research. Kanishka, 2007.
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