https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?idx=an%2Cphr&q=2181%26limit%3Ditype%3ATESIS%26limit%3Dau%3ACruz%20Flores%2C%20Ana%20Belisa&format=rss2 Search results for 'an,phr: 2181&limit=itype:TESIS&limit=au:Cruz Flores, Ana Belisa' at Biblioteca UGB 0 20