Rattanaboon, Chayanon, Chanisvara Lertamornpong, and Sakon Tangkawsakul. “ENHANCING MATHEMATICAL LITERACY OF GRADE 9 STUDENTS THROUGH LEARNING ACTIVITIES BASED ON MATHEMATICAL MODELING ON PYRAMIDS, CONES, AND SPHERES”. Journal of MCU Nakhondhat 13, no. 7 (June 27, 2026): 88–101. accessed September 10, 2026. https://so03.tci-thaijo.org/index.php/JMND/article/view/300929.