SEKER, E. Multiple language learning. Global Journal of Foreign Language Teaching, [S. l.], v. 6, n. 4, p. 196–205, 2016. DOI: 10.18844/gjflt.v6i4.1670. Disponível em: https://un-pub.eu/ojs/index.php/GJFLT/article/view/1670. Acesso em: 1 jun. 2025.