Hasanah R, Gunawan G, Muntari M. Development of Problem-Based Physics Learning Tools: Evaluation of Validity and Practicality. Pus.Did [Internet]. 2025 Aug. 1 [cited 2026 Feb. 16];1(1):6-19. Available from: https://erj.lombokinstitute.com/index.php/didaktis/article/view/9