Ancel, S. “Abba Abraham Buruk Woldegaber and Mario Alexis Portella, Abyssinian Christianity, the First Christian Nation? The History and the Identity of the Ethiopian and Eritrean Christians”. Aethiopica, vol. 19, no. 1, Oct. 2017, pp. 288-90, doi:10.15460/aethiopica.19.1.961.