Niemsup, Supicha, and Watsaporn Arayaphan. “Analysis and Classification of Knowledge About the Settlement of Ethnic Groups in Lanna”. Journal of Information and Learning [JIL] 35, no. 2 (August 26, 2024): 156–169. accessed December 9, 2025. https://so04.tci-thaijo.org/index.php/jil/article/view/270369.