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<![CDATA[Biblioteca UGB Search for 'an:3044 and itype:BK and au:Portillo HernÃ¡ndez, Edwin David and su-to:COMERCIO ELECTRÃNICO']]> https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=an%3A3044%20and%20itype%3ABK%20and%20au%3APortillo%20Hern%C3%83%C2%A1ndez%2C%20Edwin%20David%20and%20su-to%3ACOMERCIO%20ELECTR%C3%83%C2%93NICO&format=rss2 Search results for 'an:3044 and itype:BK and au:Portillo HernÃ¡ndez, Edwin David and su-to:COMERCIO ELECTRÃNICO' at Biblioteca UGB 0 20