“Study The Effect of Adding (MgO) on Some Mechanical and Thermal Properties of Polyvinyl Chloride (PVC) Pipes Exposed to Sunlight”. Damascus University Journal for engineering sciences 41, no. 1 (February 21, 2025). Accessed June 18, 2026. https://journal.damascusuniversity.edu.sy/index.php/engj/article/view/7078.