EL FADL, S. A. A CONSIDERATION OF THE MATERIALS FOR TEACHING PAST TENSES IN ENGLISH GRAMMAR COURSE BOOKS. PEOPLE: International Journal of Social Sciences, [S. l.], v. 5, n. 3, p. 297–318, 2021. DOI: 10.20319/pijss.2019.53.297318. Disponível em: https://grdspublishing.org/index.php/people/article/view/1222. Acesso em: 3 may. 2024.