Seyoum, Dereje, and Shifferaw Taye. “PARAMETRIC ANALYSIS OF THE DYNAMIC PROPERTIES OF SECTORIAL SHELLS”. Zede Journal of Ethiopian Engineers and Architects 24 (January 31, 2023): 23–32. Accessed April 6, 2025. https://ejol.aau.edu.et/index.php/ZEDE/article/view/6571.