Al-Dulaimi, Sana, and سناء. “Study of the Effect of Silica Fill Ratio on Some Mechanical Properties and Electrical Conductivity of Styrene-Peptadiene / Silica Rubber”. Journal of Education and Science (JES) 19, no. 1 (January 1, 2007): 155–165. Accessed August 4, 2025. https://rjps.uomosul.edu.iq/index.php/edusj/article/view/18290.