Waqar Ahmad, and Bashir Alam. “COST OPTIMIZATION OF RIGIDLY JOINTED REINFORCED CONCRETE FRAME STRUCTURES”. International Journal of Advance Engineering and Research Development (IJAERD), vol. 5, no. 9, Sept. 2018, pp. 7-16, https://ijaerd.org/index.php/IJAERD/article/view/3820.