Thamrin, T., Saidun Hutasuhut, Aditia, R., & Putri, F. R. (2022). The Effectiveness of the Hybrid Learning Materials with the Application of Problem Based Learning Model (Hybryd-PBL) to Improve Learning Outcomes during the COVID-19 Pandemic. IJORER : International Journal of Recent Educational Research, 3(1), 124-134. https://doi.org/10.46245/ijorer.v3i1.178