Journal of the House of Representatives of Texas: 82nd Legislature, Regular Session, Monday, February 21, 2011, legislative document, February 21, 2011; (https://texashistory.unt.edu/ark:/67531/metapth903542/m1/1/: accessed June 9, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .