tengku yusoff, tengku muhamad akmal, Mohamad Luthfi Bin Ahmad Jeni, and Hilmi Bin Kosnin. 2023. “Mechanical Properties of Concrete Block Containing Recycled Paper Sludge (RPS) As Replacement Material”. Progress in Engineering Application and Technology 4 (2): 772-79. https://penerbit.uthm.edu.my/periodicals/index.php/peat/article/view/10068.