KIZI, Khamraeva Oynisa Farkhod. Current Problems of Physical and Mathematical Sciences. American Journal of Social and Humanitarian Research, [S. l.], v. 3, n. 11, p. 73–77, 2022. DOI: 10.31150/ajshr.v3i11.1643. Disponível em: https://globalresearchnetwork.us/index.php/ajshr/article/view/1643. Acesso em: 23 jul. 2025.