GOBENA, W. O. . The Feature of ATR and ATR Harmony in Nilo-Saharan Languages of Ethiopia. International Journal of Learning, Teaching and Educational Research, [S. l.], v. 16, n. 2, p. 62–75, 2017. Disponível em: https://ijlter.net/index.php/ijlter/article/view/841. Acesso em: 11 sep. 2026.