SURIYOS , A. The Efficiency of Trumpet Exercises Book for Trumpet Performance in the University Level of Rajabhat University. Lawarath Social E-Journal, [S. l.], v. 5, n. 1, p. 53–66, 2023. Disponível em: https://so04.tci-thaijo.org/index.php/lawarathjo/article/view/260094. Acesso em: 16 sep. 2026.