MANGENOT, François; NISSEN, Elke. Collective Activity and Tutor Involvement in E-learning Environments for Language Teachers and Learners. CALICO Journal, [S. l.], v. 23, n. 3, p. 601–622, 2013. DOI: 10.1558/cj.v23i3.601-622. Disponível em: https://journal.equinoxpub.com/Calico/article/view/17407.. Acesso em: 16 jun. 2024.