Zulyati Z, Sulastri S, Nurmalia C, Yusrizal Y, Hasan H. Application of Problem-Based Worksheet on Hydrocarbon Combustion Materials through E-Learning to Enhance Student’s Learning Outcomes and Enviromental Care Attitude . jppipa, pendidikan ipa, fisika, biologi, kimia [Internet]. 2022 Dec. 28 [cited 2024 Apr. 24];8(6):2883-7. Available from: https://jppipa.unram.ac.id/index.php/jppipa/article/view/2055