Syahlan ID, Hidayat DR, Hidayat OS. Application of the Project Based Learning Model in Elementary Schools: Obstacles and Solutions of Science and Environment Content. jppipa, pendidikan ipa, fisika, biologi, kimia [Internet]. 2023 Apr. 30 [cited 2024 May 20];9(4):2060-7. Available from: https://jppipa.unram.ac.id/index.php/jppipa/article/view/3285