Pukon, Aphison, Saythit Yafu, and Thinnakorn Cha-umpong. 2025. “The Factors Affecting Internal Quality Assurance of Ha Khun Suk (5 Warlords) Group under The Department of Learning Promotion”. Journal of the Association of Researchers 30 (2):256-77. https://so04.tci-thaijo.org/index.php/jar/article/view/280025.