TOMLINSON, Brian. KEY ISSUES IN EFL COURSEBOOKS. ELIA: Estudios de Lingüística Inglesa Aplicada, [S. l.], n. 15, p. 171–180, 2017. Disponível em: https://revistas.uned.es/index.php/ELIA/article/view/18004. Acesso em: 27 ene. 2026.