Fisseha, Desalew, Mequanent Mulugeta, and Esayas Gebreyouhannes. 2023. “OPTIMAL DESIGN AND ANALYSIS OF PRE-STRESSED CONCRETE SLEEPERS”. Zede Journal of Ethiopian Engineers and Architects 34 (February):1-9. http://ejol.aau.edu.et/index.php/ZEDE/article/view/6494.