Texas Register: Annual Index January 1 - December 30, 2011, Index of Non-Rulemaking Notices, Pages 205-233., periodical, 2012; (https://texashistory.unt.edu/ark:/67531/metapth308984/m1/2/: accessed May 2, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .