By Burns, Alvin C.. Upper Saddle River, NJ : Pearson/Prentice Hall, 2006 . 665 p ; , "SPSS integration"-- Pref. 26 cm.. 0131477323
]]>By Perera, Nelson.. French's Forest, N.S.W. :. Pearson SprintPrint, 2004 . v, 97 p. : , Includes bibliographical references (p. 97). 30 cm.. 1741033543
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