S. A. Alabi, “The Potential of Recycled Aggregates and Coconut Fiber in the Production of Concrete”, IJIE, vol. 12, no. 8, pp. 303–309, Sep. 2020, Accessed: Apr. 10, 2026. [Online]. Available: https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/3810