Chottirattanakul, Varaporn, Pongsatorn Mahavijit, and Nataya Pilanthananond. 2022. “Development of Mathematics Enrichment Program Using Community-Based Learning for Lower Secondary School Level, Ban Siao School”. Faculty of Humanities and Social Sciences Thepsatri Rajabhat University Journal 13 (1):49-66. https://so01.tci-thaijo.org/index.php/truhusocjo/article/view/248475.