CHRISTENSEN, Erik. The Acquisition of Perfective and Imperfective Aspect: A Comparative Study of Arabic and Japanese Learners of English. Kansas Working Papers in Linguistics, [S. l.], v. 31, p. 1–21, 2010. DOI: 10.17161/KWPL.1808.5721. Disponível em: https://journals.ku.edu/kwpl/article/view/17353.. Acesso em: 30 apr. 2024.