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<![CDATA[Biblioteca UGB Search for 'an:2228 and itype:BK and au:ZacarÃas Ortez, Eladio and su-to:METODOS DE INVESTIGACION']]> https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=an%3A2228%20and%20itype%3ABK%20and%20au%3AZacar%C3%83%C2%ADas%20Ortez%2C%20Eladio%20and%20su-to%3AMETODOS%20DE%20INVESTIGACION&format=rss2 Search results for 'an:2228 and itype:BK and au:ZacarÃas Ortez, Eladio and su-to:METODOS DE INVESTIGACION' at Biblioteca UGB 0 20