Kapeliuk, Olga. “Gäbrä Iyyäsus Kifle, ታሪኽ ትውልዲ ልሳን ግእዝ Tariḵ tǝwlǝddi lǝssan Gǝʿǝz [History of the Origin of the Gǝʿǝz Language – in Tigrinya]”. Aethiopica 6, no. 1 (July 20, 2003): 263–265. Accessed December 8, 2022. https://journals.sub.uni-hamburg.de/aethiopica/article/view/399.