Sompochpisut, Pisut, and Kiarttiporn Umpai. “Optometry Profession Practice Control”. Rajapark Journal 14, no. 34 (June 20, 2020): 203–218. Accessed May 19, 2024. https://so05.tci-thaijo.org/index.php/RJPJ/article/view/237788.