Sukmaitree, J., K. Kalayanamitra, N. Auekarn, and C. Rodjam. “Utility Development of Public Utilities in Pak Nam Tha Ruea Subdistrict Municipality, Mueang Ranong District, Ranong Province”. Dhammathas Academic Journal, vol. 25, no. 1, Mar. 2025, pp. 401-12, https://so06.tci-thaijo.org/index.php/dhammathas/article/view/281246.