Anteneh Messele Birhanu, Telake Azale Bisetegn, Solomon Woldeyohannes et al.
Luigi Costantini, Cesira Pasquarella, Anna Odone
Nebyu Daniel Amaha, Berhanu Teshome Woldeamanuel
Abebe Alemu, Wondewosen Tsegaye, Lemu Golassa
Demewoz Haile, Muluken Azage, Tegegn Mola
Tsegay Kahsay Gebrekidan, Niguse Gebru Weldemariam, Hagos Degefa Hidru et al.
Douglas W. MacPherson
Lynn V. Dicks, Tom D. Breeze, Hien T. Ngo
Gunar Günther, J Asmera, Eldryd Parry
Bernt Lindtjørn, Demissew Mitiku, Zillo Zidda
Daniel Mains
Tilahun Nigatu
