United States. General Accounting Office. Catalogue of GAO and Inspectors General Reports on Contracting Issues for Fiscal Years 1997 through 2002, text, March 31, 2003; (https://digital.library.unt.edu/ark:/67531/metadc292871/m1/1/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .