QING, Z.; TEERAVUT, P. A Studying of Vocal Techniques for Upper Elementary Students . Journal of Roi Kaensarn Academi, [S. l.], v. 9, n. 2, p. 182–188, 2024. Disponível em: https://so02.tci-thaijo.org/index.php/JRKSA/article/view/265507. Acesso em: 2 ต.ค. 2026.