Martaningsih, S. T., I. Maryani, D. S. . Prasetya, S. Purwanti, I. C. Sayekti, N. A. . Abdul Aziz, and P. . Siwayanan. “STEM Problem-Based Learning Module: A Solution to Overcome Elementary students’ Poor Problem-Solving Skills”. Pegem Journal of Education and Instruction, vol. 12, no. 4, Oct. 2022, pp. 340-8, doi:10.47750/pegegog.12.04.35.