1.
Mahuob A, Alkhali K, Irawati L. COVID-19 Pandemic: Factors Contributing to Persistent Infection and Severe Cases . Journal of 21 September university [Internet]. 2026 May 5 [cited 2026 Sep. 25];5(1):1-15. Available from: http://www.ojs.21umas.edu.ye/masj/article/view/369