https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=an%3A%22229%22%20and%20holdingbranch%3AUSU%20and%20su-to%3AMETODOLOGIA%20DE%20ENSE%C3%83%C2%91ANZA%20and%20su-to%3AMETODOLOGIA%20DE%20ENSE%C3%83%C2%91ANZA&format=rss2 Search results for 'an:"229" and holdingbranch:USU and su-to:METODOLOGIA DE ENSEÑANZA and su-to:METODOLOGIA DE ENSEÑANZA' at Biblioteca UGB 0 20