Asih TLB, Prayitno BA, Ariani SRD. Improving the Problem-Solving Skill of Students using Problem-Based Learning-Based E-Modules. jppipa, pendidikan ipa, fisika, biologi, kimia [Internet]. 2022 Jul. 31 [cited 2024 Apr. 20];8(3):1447-52. Available from: https://jppipa.unram.ac.id/index.php/jppipa/article/view/1696