Santoso, A., Wahyuddin, M.I. and Aningsih, A. 2020. Backcup Router Network Optimization to Prevent Link Failure Using the Virtual Router Redundancy Protocol (VRRP) Method: Backcup Router Network Optimization to Prevent Link Failure Using the Virtual Router Redundancy Protocol (VRRP) Method. Jurnal Mantik. 4, 1 (May 2020), 276-282.