https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=an%3A%225876%22%20and%20holdingbranch%3AUGB%20and%20su-to%3ATESIS%20and%20au%3AMatas%20Mu%C3%83%C2%B1oz%2C%20Karla%20Michelle%20and%20au%3ARodr%C3%83%C2%ADguez%20Luna%2C%20Victor%20Manuel&format=rss2 Search results for 'an:"5876" and holdingbranch:UGB and su-to:TESIS and au:Matas Muñoz, Karla Michelle and au:Rodríguez Luna, Victor Manuel' at Biblioteca UGB 0 20