https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?idx=an%2Cphr&q=234%26limit%3Dsu-to%3AIDIOMA%20INGLES%26limit%3Davailable%26limit%3Dau%3APerdomo%20Hern%C3%83%C2%A1ndez%2C%20Juan%20Antonio&format=rss2 Search results for 'an,phr: 234&limit=su-to:IDIOMA INGLES&limit=available&limit=au:Perdomo Hernández, Juan Antonio' at Biblioteca UGB 0 20