TIAN, Yu. Application of Flipped Classroom in Vocal Music Teaching in Colleges and Universities. International Journal of Education and Social Development, [S. l.], v. 3, n. 1, p. 14–16, 2025. DOI: 10.54097/mgyy6p25. Disponível em: https://ijesd.com/index.php/ijesd/article/view/120. Acesso em: 24 aug. 2026.