Asfour, H. I., N. Hariri, N. A.-G. Tayyib, F. J. Alsolami, and G. Lindsay. “The Association of Knowledge, Perception and Attitude of COVID-19 With the Psychological Status of the Public in Saudi Arabia”. Journal of Liaquat University of Medical & Health Sciences, vol. 21, no. 03, Oct. 2022, pp. 202-8, http://121.52.154.205/index.php/jlumhs/article/view/709.