Jatuporn, Tanapol, Sanit Teemueangsai, and Darunnapa Nachairit. “Blended Problem-Based Learning Management Promoting Mathematical Problem-Solving Abilities for 6th-grade Students of Anuban Rattana Kalasin School”. Interdisciplinary Academic and Research Journal 3, no. 1 (February 3, 2023): 295–312. accessed September 11, 2026. https://so03.tci-thaijo.org/index.php/IARJ/article/view/265933.