Texas. Legislature. House of Representatives. 78th Texas Legislature, Regular Session, House Bill 1, Chapter 1330, legislative document, June 22, 2003; (https://texashistory.unt.edu/ark:/67531/metapth158047/m1/1/: accessed December 11, 2017), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .