The Socio-Cultural and Economic History of the Fourteen Horroo Sons to 1876, Horro-Guduruu Wallaggaa, North East Wallaggaa, South of Mormor River, Oromia, Africa. (2020). Journal of African Studies and Ethnographic Research, 2(2). https://royalliteglobal.com/african-studies/article/view/404