KYFENKO, A.; ROMANOVA, T. A method of phase formation of vocal sound at activities of a training choral collective. ScienceRise: Pedagogical Education, [S. l.], n. 6 (39), p. 4–7, 2020. DOI: 10.15587/2519-4984.2020.217050. Disponível em: https://journals.uran.ua/sr_edu/article/view/217050. Acesso em: 17 jul. 2024.