สุวรรณฉาย ส. The Development of Mathematical Learning Activities Based on CIPPA Model Focusing on K-W-D-L Technique on Mixed Addition and Subtraction Word Problems for Prathomsuksa 1. EDGKKUJ [Internet]. 2018 May 25 [cited 2024 Apr. 29];11(4):226-33. Available from: https://so02.tci-thaijo.org/index.php/EDGKKUJ/article/view/125579