Foundations for research: methods of inquiry in education and the social sciences
New jersey, 2004
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Dunn, Dana S.
Research methods for social psychology
Wiley-Blackwell, 2009
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Judd, Charles M.
Research methods in social relations
Methuen, 1991
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Doing social psychology research
BPS Blackwell, 2004
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Babbie, Earl R.
Social research counts
Wadsworth and Cengage Learning, 2013 (International edition)
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