MA, Heting. Current Situation and Countermeasures of Singing Teaching in Universities. International Journal of Global Economics and Management, London, U.K., v. 3, n. 3, p. 103–112, 2024. DOI: 10.62051/ijgem.v3n3.13. Disponível em: https://wepub.org/index.php/IJGEM/article/view/2341. Acesso em: 13 may. 2026.