Studying the Mechanical and Electrical Properties of Polyester Resin Reinforced with Silica Particals. J. eng. sustain. dev. [Internet]. 2013 Dec. 1 [cited 2024 Jul. 22];17(6):201-14. Available from: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1041