Keawchofong, Isarapap. (2022) 2023. “Guidelines for soild waste Management of nong phue subdistrict administrative rganization tha li district loei province”. Journal of Humanities and Social Sciences Loei Rajabhat University 4 (2). Loei:24-39. https://so01.tci-thaijo.org/index.php/husolru/article/view/260015.