Sutthiphapa, Nathaporn, and Anucha Phianchana. “Guideline for Waste Management to Participation People at Municipal Trakanphutphon, Trakanphutphon District, Ubonratchathani Province”. Research and Development Journal, Loei Rajabhat University 15, no. 53 (August 20, 2020): 62–73. accessed September 13, 2026. https://so05.tci-thaijo.org/index.php/researchjournal-lru/article/view/225413.