จุ้ยทอง ส. The Development of Mathematics Learning Activities Package: Decimal and Fractions Topic Based on Collaborative Learning Approach for Mathayomsuksa One Students. HSSJ [Internet]. 2018 Dec. 24 [cited 2024 May 17];6(2):146-63. Available from: https://so03.tci-thaijo.org/index.php/hssj/article/view/248517