Waqar, H., 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”. Pakistan Journal of Health Sciences, vol. 6, no. 8, Aug. 2025, doi:10.54393/pjhs.v6i8.3474.