Leesa, P., and K. Saeng-ngam. “The development Problem Solving Abilities of students in grade 3 by teaching and learning STEM education”. Journal for Developing the Social and Community, vol. 10, no. 1, Apr. 2023, pp. 651-62, https://so03.tci-thaijo.org/index.php/rdirmu/article/view/262615.