[1]
E. B. A. P. PMP, PEM, M. Eng, M.PH. and D. F. Letam, “Using Cisco Packet Tracer to Build Topologies, Perform VLSM Subnetting, and Configure OSPF Routing”, etj, vol. 11, no. 08, pp. 11042–11057, Aug. 2026.