MEDINA, Jose. Tense and agreement markers in the interlanguage of Spanish learners of English. Revista de Lenguas para Fines Específicos, [S. l.], v. 21, n. 1, p. 109–131, 2015. Disponível em: https://ojsspdc.ulpgc.es/ojs/index.php/LFE/article/view/242. Acesso em: 2 may. 2024.