M. Najem, R. and Salim T. Yousif, D. 2014. Optimum Cost Design of Reinforced Concrete Columns Using Genetic Algorithms. Al-Rafidain Engineering Journal (AREJ). 22, 1 (Feb. 2014), 112–141. DOI:https://doi.org/10.33899/rengj.2014.86986.