GAO, Yu. The Integration of Shanbei Folk Songs in Vocal Music Teaching in University of China. International Journal of Social Sciences and Public Administration, U.K., v. 3, n. 2, p. 417–425, 2024. DOI: 10.62051/ijsspa.v3n2.51. Disponível em: https://wepub.org/index.php/IJSSPA/article/view/2135. Acesso em: 2 may. 2026.