Sulaiman, Wafaa, وفاء, Seham Ali, and سهام. 2007. “Effect of Addition of SiMa Filling to Styrene - Butadiene (SBR) Rubber on Its Mechanical Properties and Homogeneity”. Journal of Education and Science (JES) 19 (3):121-26. https://doi.org/10.33899/edusj.2007.51327.