Tesdee, Chawit, and Wimonrat Chaturanon. “Effects of Instructional Model on Concept Attainment in Mathematicson ‘SET’ of the Tenth Grade Students”. Ratchaphruek Journal 13, no. 1 (April 30, 2015): 80–87. accessed August 26, 2026. https://so05.tci-thaijo.org/index.php/Ratchaphruekjournal/article/view/240951.