Concário, Marcelo, et al. “Modes of Communication and Language Learning in the 21st Century: Challenges for Internationalization”. Trabalhos Em Linguística Aplicada, vol. 59, no. 3, Mar. 2021, pp. 2209-31, https://periodicos.sbu.unicamp.br/ojs/index.php/tla/article/view/8657124.