iJTVet Publisher, Mohd Aznan Bin Janal, Zarulrizam Bin Ab. Jalil, and Zaini Bin Ahmad, “THE EFFECTIVENESS IN USING PACKET TRACER SIMULATION SOFTWARE IN IMPROVING THE SKILLS AMONG COMPUTER SYSTEM AND NETWORKS PROGRAMME STUDENTS”, iJTvET, vol. 2, no. 1, pp. 38-49, May 2020.