Heck Ronald H Multilevel modeling of categorical outcomes using IBM SPSS. - New York Routledge 2012 - xvi,439p cm. ISBN: 2549.3806 Standard No.: 116068 Source: 31, 25/07/2012, Vardhman Books Textual Subjects--Topical Terms: Financial Studies Dewey Class. No.: D6,8(B289SPSS), Q2