Texas. Legislature. Senate. Journal of the Senate, Regular Session of the Seventy-Ninth Legislature of the State of Texas, Volume 4, legislative document, 2005; (https://texashistory.unt.edu/ark:/67531/metapth123810/m1/1/: accessed July 6, 2020), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .