wichiansri, warangkana, Piyanukool, S. and Namsawat, W. (2024) “Effect of Learning Management by Using Problem Based Learning toward Learning Achievement and Scientific Problem-Solving Ability of Prathomsuksa 6 Students: Effect of Learning Management by Using Problem Based Learning toward Learning Achievement and Scientific Problem-Solving Ability of Prathomsuksa 6 Students”, RATANABUTH JOURNAL. Yasothon, Thailand, 6(1), pp. 1–15. available at: https://so07.tci-thaijo.org/index.php/rtnb/article/view/3956 (accessed: 7 April 2025).