จีรภัทร์ บ., ฐิตสาโร พ. and ศิริวรรณ อ. (2018) “The Learning Management Based on the Threefold Training for Development of Subject Area of Mathematics for Grade Six Students”, Journal of Educational Review Faculty of Education in MCU, 1(2), pp. 55–83. Available at: https://so02.tci-thaijo.org/index.php/EDMCU/article/view/143173 (Accessed: 24 May 2022).