Konglawan, Nanthiya, and Jongkol Thamsuan. “Effects of Mathematics Learning Activities Using Heuristics Thinking with Visual Learning Strategies on Mathematical Communication Ability of Lower Secondary Students”. An Online Journal of Education 19, no. 2 (November 14, 2024): OJED1902001 (14 pages). accessed August 27, 2026. https://so01.tci-thaijo.org/index.php/OJED/article/view/273425.