LI, Lufei. Study on the Phenomenon of "Upgrading from Junior College to University" in Vocational Education. Journal of Education, Humanities and Social Sciences, [S. l.], v. 14, p. 443–451, 2023. DOI: 10.54097/ehss.v14i.8907. Disponível em: https://drpress.org/ojs/index.php/EHSS/article/view/8907. Acesso em: 7 aug. 2026.