Anggri Wijaya, S. et al. 2025. Development of a Problem-Based E-Module on Particle Motion Dynamics to Improve Physics Problem-Solving Skills Using Flip . Kasuari: Physics Education Journal (KPEJ). 8, 2 (Dec. 2025), 532–541. DOI:https://doi.org/10.37891/kpej.v8i2.1098.