Lewis, John P.
Statistics explained
Addison-Wesley, 1999
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Besag, Frank P.
Statistics for the helping professions
Sage, 1985
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Rubin, Allen
Statistics for evidence-based practice and evaluation
Brooks/Cole Cengage Learning, 2013
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Levin, Richard I.
Statistics for management
Prentice-Hall, 1998
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Haber, Audrey
General statistics
Addison-Wesley , 1971
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