https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?idx=an%2Cphr&q=14585%26limit%3Dau%3AHalvorson%2C%20Michael%26limit%3Dsu-to%3AVISUAL%20BASIC&format=rss2 Search results for 'an,phr: 14585&limit=au:Halvorson, Michael&limit=su-to:VISUAL BASIC' at Biblioteca UGB 0 20