Alsaqour, R., A. Majrashi, M. Alreedi, K. Alomar, and M. Abdelhaq. “Defense in Depth: Multilayer of Security”. 2021. International Journal of Communication Networks and Information Security (IJCNIS), vol. 13, no. 2, Apr. 2022, doi:10.17762/ijcnis.v13i2.4951.