余 國. 鄕音已改——自由民教育的比較觀. 人文中國學報, [S. l.], v. 3, p. 1–17, 1996. DOI: 10.24112/sinohumanitas.32310. Disponível em: https://ejournals.lib.hkbu.edu.hk/index.php/sinohumanitas/article/view/2310. Acesso em: 15 may. 2024.