United States. General Accounting Office. Border Security: Improvements Needed to Reduce Time Taken to Adjudicate Visas for Science Students and Scholars, text, February 25, 2004; (https://digital.library.unt.edu/ark:/67531/metadc291606/m1/3/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .