Khum-un, S. and Ruaengsri, S. . . (2024) “The Development of Mathematics Learning Activities Using a Constructivist Approach for Undergraduate Students in a Mathematics Education Program”, SOCIAL SCIENCES RESEARCH AND ACADEMIC JOURNAL. Bangkok, Thailand, 19(2), pp. 173–186. available at: https://so05.tci-thaijo.org/index.php/JSSRA/article/view/270464 (accessed: 6 December 2025).