ERGASHEV DONIYOR DOVRANOVICH. Theoretical Issues of Mastering Language Levels. American Journal of Philological Sciences, [S. l.], v. 5, n. 04, p. 242–245, 2025. DOI: 10.37547/ajps/Volume05Issue04-62. Disponível em: https://theusajournals.com/index.php/ajps/article/view/5311. Acesso em: 2 aug. 2025.