Sekarani, T.S., Akhsan, H. and Kistiono, K. 2026. Validation of Problem-Based Learning Teaching Modules on Momentum and Impulse to Improve Students’ Critical Thinking Skills. Indonesian Journal of Education Research (IJoER). 7, 2 (Apr. 2026), 166-175. DOI:https://doi.org/10.37251/ijoer.v7i2.2369.