https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3AUniversidad%20Gerardo%20Barrios%20and%20holdingbranch%3AUGB%20and%20au%3AQuinteros%20Espinoza%2C%20Alejandro%20Antonio%20and%20au%3ARodr%C3%83%C2%ADguez%20Bolainez%2C%20Esperanza%20De%20la%20Paz%20and%20holdingbranch%3AUSU&format=rss2 Search results for 'Provider:Universidad Gerardo Barrios and holdingbranch:UGB and au:Quinteros Espinoza, Alejandro Antonio and au:Rodríguez Bolainez, Esperanza De la Paz and holdingbranch:USU' at Biblioteca UGB 0 20