Silarak, Supawat, Phrakru Prayutsaratham, Phramaha Wiruth Wirojano, and Phrakrupalad Thawee Abhayo. “Public Demand for Public Services Provided by the Na Krasang Subdistrict Administrative Organization, Det Udom District, Ubon Ratchathani Province Based on the Four Principles of Raja-Saṅgahavatthu”. Journal of Buddhist Education and Research (JBER) 11, no. 1 (February 17, 2025): 36–47. accessed December 9, 2025. https://so06.tci-thaijo.org/index.php/jber/article/view/280671.