Rawash, Hassan, Ali Ratib Alawamreh, Abdallah Mishael Obeidat, and Ahmad h nawafleh. 2023. “The Effectiveness of Problem-Based Learning in Acquisition of Knowledge Using Online Learning ”. International Journal of Membrane Science and Technology 10 (3):997-1007. https://doi.org/10.15379/ijmst.v10i3.1647.