Obead, Ali N., and Nadia A. Ali. “Carbon Black in  Electromagnetic Interference Shielding Effectiveness of Lightweight Polypyrrole  in (C-Band and X-Band) Frequency Range”. Ibn AL-Haitham Journal For Pure and Applied Sciences, vol. 39, no. 1, Jan. 2026, pp. 140-54, https://doi.org/10.30526/39.1.4201.