Musba Kedir
Habtamu Alebachew and Diba Dedecha
R.M. Iorhiin, P.A. Annune, R.G. Okayi and M.E. Oyeniyi
Atheer A. Khashan, A.H. Chyad, S.R. Sarhan and O.MS. Ibrahim
Tura Bareke and Zemede Asfaw