FahrezaF., & RifqiM. (2020). Nagios Core Optimization by Utilizing Telegram as Notification of Disturbance. JTI nternational ournal of ransportation and nfrastructure ISSN 2597-4769 ISSN 2597-4734, 3(2), 130-146. https://doi.org/10.29138/ijti.v3i2.1064