H. Mulavizada, A. N. Jabarkhil, S. Rahime, K. Zafarzai, and S. Sahak, “Prevalence of the COVD-19 in Nangarhar Corona Center According to Season in 2020- 2022”, Nangarhar University International Journal of Biosciences, vol. 3, no. 02, pp. 18–21, Feb. 2024.