Ya-amphan, Duangmanee, Sampan Thinwiangthong, and Phailath Sythong. “Comparative Study of Means of Mathematical Communication in Japan, Laos, and Thailand”. Journal on Mathematics Education 15, no. 1 (January 14, 2024): 99–114. Accessed November 22, 2024. http://jme.ejournal.unsri.ac.id/index.php/jme/article/view/470.