Baig, Mukhtiar, Zohair Jamil Gazzaz, and Mohamed Farooq. “Blended Learning: The Impact of blackboard formative Assessment on the Final Marks and students’ Perception of Its Effectiveness: Blended Learning”. Pakistan Journal of Medical Sciences 36, no. 3 (March 3, 2020). Accessed April 25, 2024. https://pjms.org.pk/index.php/pjms/article/view/1925.