Lestari, F. A., A. M. Imammuddin, and A. Hariyadi. “Design and Construction of an Officer Reminder System for Train Arrivals and Departures Using Fiber Optic Media (PT KAI Operational Area 8 Surabaya)”. JURNAL JARTEL: Jurnal Jaringan Telekomunikasi, vol. 16, no. 2, June 2026, pp. 166-73, doi:10.33795/jartel.v16i2.9456.