https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3ATrillas%20and%20su-to%3AEDUCACION%20and%20holdingbranch%3AUGB%20and%20su-to%3AMETODOS%20DE%20ENSE%C3%83%C2%91ANZA%20and%20su-to%3AMETODOS%20DE%20ENSE%C3%83%C2%91ANZA&format=rss2 Search results for 'Provider:Trillas and su-to:EDUCACION and holdingbranch:UGB and su-to:METODOS DE ENSEÑANZA and su-to:METODOS DE ENSEÑANZA' at Biblioteca UGB 0 20