One of the prolific historians of Ethiopian History Tekle Tsadik Mekuria has written the following books and many more. I have broken the chapters in to parts so that the it can easily be viewed. more to come.
The history of Ethiopia before and after Atse Tewodros, the political and personal life of King Tewodros. The implication of a unified Ethiopia, the resistance from inside the country and out side forces, the battle of Mekdela and its historical significance are discussed in these books: