Waqar, Hanzala, Waqas Ali, Uzma Faryal, Sadia Fatima, Bilqis Hassan, and Sammer Fatima 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 6, no. 8 (August 31, 2025). Accessed December 5, 2025. https://mail.thejas.com.pk/index.php/pjhs/article/view/3474.