https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3AUniversidad%20Gerardo%20Barrios%20and%20holdingbranch%3AUSU%20and%20itype%3ABK%20and%20au%3ARodr%C3%83%C2%ADguez%20Parada%2C%20Edgar%20Gustavo&format=rss2 Search results for 'Provider:Universidad Gerardo Barrios and holdingbranch:USU and itype:BK and au:Rodríguez Parada, Edgar Gustavo' at Biblioteca UGB 0 20