YUNFEI , Y.; SONDHIRATNA, T. The Practice of Soprano Vocal Singing Skills in China. Journal of Modern Learning Development, [S. l.], v. 9, n. 11, p. 1010–1018, 2024. Disponível em: https://so06.tci-thaijo.org/index.php/jomld/article/view/292656. Acesso em: 17 sep. 2026.