H. Waqar, W. Ali, U. Faryal, S. Fatima, B. Hassan, and S. F. Jalal, “Impact of Problem-Based Learning (PBL) on Knowledge Retention and Clinical Reasoning: A Systematic Review: Impact of PBL on Knowledge Retention and Clinical Reasoning”, PJHS-Lahore, vol. 6, no. 8, Aug. 2025.