Aklilu, Yilma. 1990. "Two Phonological Processes in Nayi: Palatalization and Labialization." In Proceedings of the 1st national conference of Ethiopian studies, Addis Ababa, April 11-12, 1990, edited by Richard K.P. Pankhurst et al.. 433-448. Inst. of Ethiopian Studies, Addis Ababa Univ.