M. KUMAR, F. KHALID, R. AFREEN and S. LODI 2017. Gross and Yield Period of Vibration of Low-Rise Reinforced Concrete Frames in Karachi . Sindh University Research Journal - SURJ (Science Series). 49, 3 (Sep. 2017). DOI:https://doi.org/10.26692/surj.v49i3.1498.