Aleem, Saima, Naheed Mahsood, Zeeshan Kibria, and Rubeena Gul. “Perception of Master of Public Health Students Regarding E-Learning in Covid-19 Era: A New Normal in Lower- and Middle-Income Countries”. Pakistan Journal of Medical Sciences 38, no. 3 (January 26, 2022). Accessed April 18, 2024. https://pjms.org.pk/index.php/pjms/article/view/4626.