https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=an%3A2181%20and%20itype%3ATESIS%20and%20location%3ATES%20and%20au%3ACruz%20Flores%2C%20Ana%20Belisa&format=rss2 Search results for 'an:2181 and itype:TESIS and location:TES and au:Cruz Flores, Ana Belisa' at Biblioteca UGB 0 20