Pantaranontaka K, Sawekngam W, Makanong A. Development of an Instructional Model based on Mathematization Approach and Realistic Mathematics Education to Enhance Mathematical Problem Solving and Reasoning Abilities of Lower-secondary School Students. JESCU [internet]. 2020 Sep. 30 [cited 2026 Sep. 14];48(3):21-40. available from: https://so02.tci-thaijo.org/index.php/EDUCU/article/view/244978