Awang, Hanizam, Adebayo Adeshina Dauda, and Wenny Arminda. “Mechanical and Durability Properties of Lightweight Foamed Concrete Containing Palm Kernel Shell”. International Journal of Engineering and Technology 7, no. 3.9 (July 9, 2018): 65–67. Accessed April 28, 2025. https://sciencepubco.com/index.php/IJET/article/view/15277.