Hirpessa, Yerosan Abera, and Ing. Dereje Hailu. “ASSESSMENT OF FAILURE ON DRAINAGE STRUCTURES ALONG THE ETHIOPIAN NATIONAL RAILWAY LINE OF SEBETA-MIESO (CASE STUDY OF AKAKI RIVER CROSSING DRAINAGE STRUCTURE)”. International Journal of Research -GRANTHAALAYAH 7, no. 9 (September 30, 2019): 123–137. Accessed May 3, 2024. https://www.granthaalayahpublication.org/journals/granthaalayah/article/view/IJRG19_A09_2722.