WURM, Stephen A. Contact languages and the preservation of endangered languages. Sociolinguistic Studies, [S. l.], v. 2, n. 2, p. 1–12, 2001. DOI: 10.1558/sols.v2i2.1. Disponível em: https://journal.equinoxpub.com/SS/article/view/11679.. Acesso em: 16 jul. 2024.