Arifin, M. D., Oloan, A. C. P., & Brahmantyo, E. H. (2025). Development of a Control and Monitoring System for Ballast Systems Based on Programmable Logic Controllers (PLC) and Human-Machine Interface (HMI). nternational ournal of arine ngineering nnovation and esearch, 10(1), 242–255. https://doi.org/10.12962/j25481479.v10i1.4768