Simpson P, Pawabudtra C, Duangchatom S. The Development of Informal Education of Opportunity Foundation, Nangrong District, Buriram Province. Res Comm Soc Dev J [internet]. 2024 Feb. 28 [cited 2026 Sep. 11];18(1):1-20. available from: https://so04.tci-thaijo.org/index.php/NRRU/article/view/268936