Daosue J, Chaiworn A, Lertprapai S. THE CONSTRUCTION OF LEARNING ACTIVITY PACKAGE BASE ON PROBLEM BASE LEARNING FOR WORD PROBLEM SOLVING IN LINEAR EQUATION FOR MATHAYOMSUKSA 1 OF BANCHANGKARNCHANAKULWITTAYA SCHOOL. Education MCU [Internet]. 2020 Dec. 26 [cited 2024 Apr. 20];7(3):96-106. Available from: https://so02.tci-thaijo.org/index.php/EDMCU/article/view/242975