David, M., & Sutton, C. D. (2010). Social research: An introduction (2nd ed.). SAGE.
Dyfyniad Arddull ChicagoDavid, Matthew, and Carole D. Sutton. Social Research: An Introduction. 2nd ed. London: SAGE, 2010.
Dyfyniad MLADavid, Matthew, and Carole D. Sutton. Social Research: An Introduction. 2nd ed. SAGE, 2010.
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