Chaiyameng, Thamasak, and Sauwaluck Nikornpittaya. “Factors Affecting of Civil Registration Services at Kok-Lam Municipality Local Registry Office, Chaturaphakphiman District, Roi-Et Province”. Journal of Modern Learning Development 6, no. 5 (July 1, 2021): 100–113. Accessed May 4, 2024. https://so06.tci-thaijo.org/index.php/jomld/article/view/249342.