Ketema, Erimiyas, and Shifferaw Taye. “PREPARATION OF UNlXAIAL CIIART FOR RECTANGULAR CONCRETEFILLED STEEL COLUMNS BASED ON RIGID PLASTIC PRINCIPLES”. Zede: Journal of Ethiopian Engineers and Architects የኢትዮጵያ መሐንዲሶችና አርክቴክቶች መጽሔት 22 (January 31, 2023): 11–24. Accessed March 14, 2026. https://ejol.aau.edu.et/index.php/ZEDE/article/view/6517.