V. . Chottirattanakul, P. . Mahavijit, and N. . Pilanthananond, “Development of Mathematics Enrichment Program Using Community-Based Learning for Lower Secondary School Level, Ban Siao School”, วารสารวิชาการ มนส. เทพสตรี, vol. 13, no. 1, pp. 49–66, Apr. 2022.