https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=%28su%3A%22Autoestima%22%29%20AND%20%28su%3A%22Estudio%20y%20ense%C3%B1anza%20Secundaria%22%29&sort_by=title_az&format=rss 5 0 50 ISBN:8483168006 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=152698 ]]> Madrid : CCS, 2004 .
167 p. : 8483168006

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=152698 ISBN:8428816158 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=125089 ]]> Madrid : PPC, 2000 .
206 p. 8428816158

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