Safitri R, Hadi S, Widiasih W. The Effect of the Problem Based Learning Model on the Students Motivation and Learning Outcomes. jppipa, pendidikan ipa, fisika, biologi, kimia [Internet]. 2023 Sep. 25 [cited 2024 Nov. 6];9(9):7310-6. Available from: https://jppipa.unram.ac.id/index.php/jppipa/article/view/4772