Tiong, Hock Yong, Siong Kang Lim, and Yee Ling Lee. “Dimensional Stability of Lightweight Foamed Concrete Containing Eggshell Powder and Calcium Stearate”. International Journal of Integrated Engineering 14, no. 1 (March 7, 2022): 260–268. Accessed July 2, 2022. https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/8228.