Sitthisuntikul, Katesuda, Somkid Kaewthip, Pongsakorn Kavichai, Suwichan Pattanapaiwan, and Olan Ongla. “Gap Analysis of Key Development Issues for Sustainable Development in Northern Thailand”. Thammasat Journal 43, no. 2 (August 28, 2024): 133–151. accessed August 28, 2026. https://so05.tci-thaijo.org/index.php/tujo/article/view/275231.