BABIKER, A. Improving Speaking Skills in EFL Classes through Collaborative Learning. American Scientific Research Journal for Engineering, Technology, and Sciences, [S. l.], v. 44, n. 1, p. 137–154, 2018. Disponível em: https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/4175. Acesso em: 2 may. 2024.