Texas. Secretary of State. Texas Register, Volume 5, Number 46, Pages 2429-2526, June 20, 1980, periodical, June 20, 1980; (https://texashistory.unt.edu/ark:/67531/metapth244697/m1/1/: accessed August 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .