MATYAKUBOV , Izzat Batirovich. Vocal - Technical Hygiene of Voices of State Singers. Excellencia: International Multi-disciplinary Journal of Education (2994-9521), [S. l.], v. 2, n. 4, p. 552–555, 2024. DOI: 10.5281/. Disponível em: https://multijournals.org/index.php/excellencia-imje/article/view/756. Acesso em: 9 nov. 2025.