TELLES, João A.; VASSALO, Maria Luisa. Foreign language learning In-Tandem: Teletandem as an alternative proposal in CALLT1. The ESPecialist, [S. l.], v. 27, n. 2, 2011. Disponível em: https://revistas.pucsp.br/index.php/esp/article/view/1629. Acesso em: 5 dic. 2025.