Ali, Zahra`a M. “A Study of the Effect of Silica Particles Addition on Some Physical Properties of PVC As a Packaging Material”. Iraqi Journal of Physics 13, no. 26 (February 10, 2019): 76–91. Accessed December 19, 2024. https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/286.