https://libcat.egst.edu.et//cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22National%20Educational%20Conference%20on%20Education%20for%20Sustainable%20Development.%22&sort_by=relevance&format=rss 2 0 50 ISBN: https://libcat.egst.edu.et//cgi-bin/koha/opac-detail.pl?biblionumber=12586 Addis Ababa.: : AAU Printing Press, 2007 .
iv, 219 p ; 26 cm..

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]]> https://libcat.egst.edu.et//cgi-bin/koha/opac-detail.pl?biblionumber=12586 ISBN: https://libcat.egst.edu.et//cgi-bin/koha/opac-detail.pl?biblionumber=12587 Addis Ababa.: : AAU Printing Press, 2006 .
viii, 508 p ; 26 cm..

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