Muxammadieva, F. J. kizi, and S. F. Majidov. “World Epidemics in the History of Humanity: On the Example of the ‘black death’”. Science and Education, vol. 4, no. 1, Jan. 2023, pp. 246-53, https://openscience.uz/index.php/sciedu/article/view/4828.