Girke, Felix Department 'Integration and Conflict', MPI for Social Anthropology, Max Planck Society;
https://journals.sub.uni-hamburg.de/aethiopica/article/view/842 (Any fulltext)
Girke, F. (2015). Conquest and resistance in the Ethiopian Empire, 1880–1974: the case of the Arsi Oromo by Abbas H. Gnamo. Aethiopica, 18, 272-276.