M. Riswan, “Covid-19: Prevalence, Prevention, and Vaccination in Nintavur MOH Area, Sri Lanka”, IJRAMT, vol. 3, no. 1, pp. 1–6, Jan. 2022, Accessed: Dec. 04, 2024. [Online]. Available: https://journals.ijramt.com/index.php/ijramt/article/view/1651