Ibrahim Z, Hanif MU, Xin Lim H, Xian Hang Y. Effect of incremental static damage on modal frequencies of reinforced concrete beams. ijie [Internet]. 2018 May 8 [cited 2024 Jul. 1];10(2). Available from: https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/2636