“Production of Load Bearing Concrete Masonry Units (blocks) From Green Concrete Containing Plastic Waste and Nano Silica Sand Powder”. Journal of Engineering 28, no. 8 (August 1, 2022): 54–70. Accessed April 26, 2025. https://www.joe.uobaghdad.edu.iq/index.php/main/article/view/1591.