TETTY, M. Theory of origin of languages. Macrolinguistics and Microlinguistics, [S. l.], v. 1, n. 1, p. 13–22, 2020. DOI: 10.21744/mami.v1n1.2. Disponível em: https://mami.nyc/index.php/journal/article/view/2. Acesso em: 18 apr. 2026.