Ardiyanto, E.Y., Suryani, N. and Rahayu, U. 2025. Development of Problem-Based Learning (PBL) Oriented E-Module to Improve Critical Thinking Skills for Elementary School Students. Jurnal Pendidikan Matematika. 16, 1 (Jan. 2025), 1–10. DOI:https://doi.org/10.36709/jpm.v16i1.249.