What’s Harder: Reading, Writing, Listening or Speaking?: Ecuadorian Students’ Perceptions of the Four Macro-Skills. Revista Ecos de la Academia, [S. l.], v. 5, n. 10, p. 53–62, 2021. Disponível em: //ojs.devsoftec.com/index.php/ecosacademia/article/view/500. Acesso em: 2 abr. 2026.