ISBN 9789047430872 (英语). George McCall, Theal. The yellow and dark-skinned people of Africa south of the Zambesi: a description of the Bushmen, the Hottentots
dealers who drove the slaves from the southern and southwestern Galla, Sidama and Gurage principalities to the central Amhara provinces. (...) the average
(原始内容存档于2022-05-31) (德语). The Sidama National Liberation Front to Join the Coalition of Resistance by the Federalist Forces. Sidama National Liberation Front