NUGRAHA, A. R. D.; NEGARA, R. M.; SANJOYO, D. D. High Availability Performance on OpenDayLight SDN Controller Platform (OSCP) Clustering and OpenDayLight with Heartbeat-Distributed Replicated Block Device (DRBD). JURNAL INFOTEL, v. 10, n. 3, p. 149-156, 31 ago. 2018.