Mahasirikul, Narongdet, and Preenithi Aksorn. “Awareness of Temporary Traffic Signs and Cellular Data Usage on Smart Phone: Ideas for Digital Safety Management”. Local Administration Journal 14, no. 1 (March 30, 2021): 37–52. Accessed May 19, 2024. https://so04.tci-thaijo.org/index.php/colakkujournals/article/view/247395.