Chottirattanakul, Varaporn, Pongsatorn Mahavijit, and Nataya Pilanthananond. “Development of Mathematics Enrichment Program Using Community-Based Learning for Lower Secondary School Level, Ban Siao School”. Journal of Faculty of Humanities and Social Sciences Thepsatri Rajabhat University 13, no. 1 (April 29, 2022): 49–66. accessed December 8, 2025. https://so01.tci-thaijo.org/index.php/truhusocjo/article/view/248475.