Healey, Joseph F., 1945-
Statistics : a tool for social research
Wadsworth, 1996
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Healey, Joseph F., 1945-
Statistics : a tool for social research
Cengage Learning, 2015
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Healey, Joseph F., 1945-
The essentials of statistics a tool for social research
Cengage Learning, 2016
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Wagner, William E.
Using SPSS for social statistics and research methods
Pine Forge Press, 2007
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Hicks, Carolyn M.
Research and statistics : a pratical introduction for nurses
Prentice-Hall, 1990
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