Kebede, S., and H. . Tkubet. “DESIGN OF HYBRID SOLAR ENERGY SYSTEM FOR THE APPLICATION OF TRAIN LOCOMOTIVE POWER SOURCE FOR THE AALRT AND ETHIO-DJIBOUTI ROUTES”. Zede Journal of Ethiopian Engineers and Architects, vol. 34, Feb. 2023, pp. 55-63, http://ejol.aau.edu.et/index.php/ZEDE/article/view/6511.