Jaini ZM, Sugiura K, Abdul Kudus S, Rum RHM, Hakim SJS, Abd Ghafar NH. Natural Frequency of Lightweight Composite Slabs Based On Experimental Study and Numerical Modelling. IJIE. 2023;15(6):87-97. Accessed August 7, 2026. https://journal.uthm.edu.my/index.php/ijie/article/view/16014