L3 acquisition of English present perfect. Linguistic Proceedings Series, [S. l.], v. 6, n. 1, p. 25–28, 2015. DOI: 10.36505/ExLing-2015/06/0007/000244. Disponível em: https://publications.linguistic-society.com/index.php/ILS/article/view/284. Acesso em: 9 sep. 2026.