Suebsunthorn, Kamonwan, and Piyaluk Potiwan. “The Development of Learning Activity on the History Methods in Sukhothai Kingdom Evolution for Mathayomsuksa 1 Students”. Journal of Education Rajabhat Maha Sarakham University 18, no. 3 (January 28, 2022): 69–78. Accessed May 18, 2024. https://so06.tci-thaijo.org/index.php/edu-rmu/article/view/253977.