Lua APA (7ú heag.)

Singh, K. (2007). Quantitative social research methods. Sage.

Lua i Stíl Chicago (17ú heag.)

Singh, Kultar. Quantitative Social Research Methods. New Delhi: Sage, 2007.

Lua MLA (9ú heag.)

Singh, Kultar. Quantitative Social Research Methods. Sage, 2007.

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