N. Abdalla, T. ., Ahmed F. Hasan, and A. . A. Hashim. “Characterization of Mechanical and Electrical Properties of Polystyrene Composite Reinforced by Hybrid Reinforcement Filler”. Diyala Journal of Engineering Sciences, vol. 15, no. 3, Sept. 2022, pp. 42-52, doi:10.24237/djes.2022.15305.