United States. General Accounting Office. Department of Veterans Affairs: Improved Measures Needed to Assess Supplemental Loan Servicing Program, report, May 4, 2001; (https://digital.library.unt.edu/ark:/67531/metadc293178/m1/1/: accessed November 13, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .