Karki, Nimesh. “Compressive Strength Comparison Between Plain Concrete and Polyethylene Terephthalate (PET) Mixed Concrete”. KEC Journal of Science and Engineering 8, no. 1 (September 2, 2024): 48–55. Accessed March 10, 2026. https://www.nepjol.info/index.php/kjse/article/view/69265.