Pelligrini, Anthony D.
Observing children in their Natural worlds : a methodological primer
Lawrence Elbaum Associates, 1996
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Shaughnessy, John J.
Research methods in psychology
McGrawhill , 1994
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Dunn, Dana S.
Research methods for social psychology
Wiley-Blackwell, 2009
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Gaultney, Jane F.
Doing research: a lab manual for psychology
California, 2007
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Doing social psychology research
BPS Blackwell, 2004
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