https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=an%3A358%20and%20su-to%3AMARKETING%20ESTRATEGICO%20and%20holdingbranch%3AUGB%20and%20su-to%3AMARKETING%20ESTRAT%C3%83%C2%89GICO%20and%20au%3ARivera%20de%20Torres%2C%20Greyci%20Guadalupe&format=rss2 Search results for 'an:358 and su-to:MARKETING ESTRATEGICO and holdingbranch:UGB and su-to:MARKETING ESTRATÉGICO and au:Rivera de Torres, Greyci Guadalupe' at Biblioteca UGB 0 20