El-Monairy, O., Ibrahim,, A., Zedan, M., Abdel-Meguid, A. (2023). 'Insecticidal activity of Silica, Zinc and Copper nanoparticles against the German cockroach, Blatella germanica (L.) (Dictyoptera: Blattellidae)', Egyptian Academic Journal of Biological Sciences. A, Entomology, 16(1), pp. 15-26. doi: 10.21608/eajbsa.2023.282347