<![CDATA[Biblioteca UGB Search for 'Provider:Universidad Gerardo Barrios and au:González Murillo, Carlos Ernesto and au:Calderón, Xiomara Patricia']]> https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3AUniversidad%20Gerardo%20Barrios%20and%20au%3AGonz%C3%83%C2%A1lez%20Murillo%2C%20Carlos%20Ernesto%20and%20au%3ACalder%C3%83%C2%B3n%2C%20Xiomara%20Patricia&format=rss2 0 20