tengku yusoff, tengku muhamad akmal, Bin Ahmad Jeni, M. L. ., & Bin Kosnin, H. (2023). Mechanical Properties of Concrete Block Containing Recycled Paper Sludge (RPS) as Replacement Material. Progress in Engineering Application and Technology, 4(2), 772-779. https://penerbit.uthm.edu.my/periodicals/index.php/peat/article/view/10068