“The Effects of Shredded Polyethylene Terephthalate (PET) Waste As Partial Substitute for Conventional Fine Aggregates on the Engineering Properties of Concrete”. SEET ETJ 1, no. 1 (May 7, 2026). Accessed May 9, 2026. https://seetfutoetj.ng/index.php/setj/article/view/78.