<![CDATA[Biblioteca UGB Search for 'Provider:Universidad Gerardo Barrios and au:Portillo Hernández, Edwin David and su-to:CRIPTOGRAF��A']]> https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3AUniversidad%20Gerardo%20Barrios%20and%20au%3APortillo%20Hern%C3%83%C2%A1ndez%2C%20Edwin%20David%20and%20su-to%3ACRIPTOGRAF%C3%AF%C2%BF%C2%BD%C3%AF%C2%BF%C2%BDA&format=rss2 Search results for 'Provider:Universidad Gerardo Barrios and au:Portillo Hernández, Edwin David and su-to:CRIPTOGRAF��A' at Biblioteca UGB 0 20