Langdridge, Darren
Introduction to research methods and data analysis in psychology
Pearson, 2004
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Benjafield, John G.
Thinking critical about research methods
Allyn and Bacon, 1994
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Goodwin, C. James
Research in psychology : methods and design
John Wiley & Sons, 2005
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Goodwin, C. James
Research in psychology: methods and design
Wiley , 2010
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Shaughnessy, John J.
Research methods in psychology
McGrawhill , 1994
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