TREIS, Yvonne. Crass & Meyer. 2009. Language Contact and Language Change in Ethiopia. AAeO - Afrikanistik-Aegyptologie-Online, [S. l.], 2011. DOI: 10.18716/ojs/aaeo/2011_3553. Disponível em: https://journals.ub.uni-koeln.de/index.php/AAeo/article/view/3553. Acesso em: 8 may. 2026.