Kirkpatrick, Lee A.
A simple guide to IBM SPSS statistics for versions 18.0 and 19.0
Wadsworth and Cengage Learning, 2011
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Aron, Arthur
Statistics for the behavioral and social science : a brief course
Prentice-Hall, 1997
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Field, Andy P
Discovering statistics using IBM SPSS
Sage Publications, 2018
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Field, Andy
Discovering statistics using SPSS: (and sex and drugs and rock 'n' roll)
Sage Publications, 2009
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Lanyi, George A.
Crisis and continuity in world politics : reading in international relations
Random House , 1966
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