https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3AEditorial%20Universidad%20Gerardo%20Barrios%20and%20location%3AINI%20and%20au%3AVillanueva%20Ort%C3%83%C2%ADz%2C%20Jos%C3%83%C2%A9%20Eliseo&format=rss2 Search results for 'Provider:Editorial Universidad Gerardo Barrios and location:INI and au:Villanueva Ortíz, José Eliseo' at Biblioteca UGB 0 20