Kamaruddin, Khairol, et al. “Quarry Dust and Kenaf Core: An Ideal Waste By-Product As Alternative Fine Aggregate for Producing Lightweight Cement Brick”. International Journal of Sustainable Construction Engineering and Technology, vol. 16, no. 2, Dec. 2025, pp. 376-88, https://penerbit.uthm.edu.my/ojs/index.php/IJSCET/article/view/18360.