HEIFT, Trude. Drag or Type, But Don’t Click: A Study on the Effectiveness of Different CALL Exercise Types. Canadian Journal of Applied Linguistics, [S. l.], v. 6, n. 1, p. 69–85, 2003. Disponível em: https://journals.lib.unb.ca/index.php/CJAL/article/view/19803. Acesso em: 4 may. 2024.