Zulyati, Z., Sulastri, S., Nurmalia, C. ., Yusrizal, Y., & Hasan, H. (2022). Application of Problem-Based Worksheet on Hydrocarbon Combustion Materials through E-Learning to Enhance Student’s Learning Outcomes and Enviromental Care Attitude . Jurnal Penelitian Pendidikan IPA, 8(6), 2883–2887. https://doi.org/10.29303/jppipa.v8i6.2055