SONGDORN, T. .; PONGSARAYUTH, S. . “Analysis of Singing Techniques and Interpretation of Four Last Songs by Richard Strauss”. Rangsit Music Journal, [S. l.], v. 18, n. 1, p. 63–78, 2023. Disponível em: https://so06.tci-thaijo.org/index.php/rmj/article/view/248558. Acesso em: 6 may. 2024.