<![CDATA[Biblioteca UGB Search for 'Provider:Universidad Gerardo Barrios and su-geo:MERCADEO and au:Torres Alfaro, Yanira del Carmen and su-geo:MERCADEO and holdingbranch:USU and au:Flores Torres, Luisa Mar��a']]> https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3AUniversidad%20Gerardo%20Barrios%20and%20su-geo%3AMERCADEO%20and%20au%3ATorres%20Alfaro%2C%20Yanira%20del%20Carmen%20and%20su-geo%3AMERCADEO%20and%20holdingbranch%3AUSU%20and%20au%3AFlores%20Torres%2C%20Luisa%20Mar%C3%AF%C2%BF%C2%BD%C3%AF%C2%BF%C2%BDa&format=rss2 0 20