Rum, Rahmat Hidayat Mohammed, Arnie Farhana Norhalim, Zainorizuan Mohd Jaini, Nor Hayati Abd Ghafar, and Marcin Kowlowski. 2019. “Density and Strength of Foamed Concrete: The Influence on Dynamic Characteristics of Lightweight Profiled Composite Slabs”. International Journal of Integrated Engineering 11 (6): 285-95. https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/4952.