Setiawan, L. F., & Widodo, E. (2024). Analyisis Of Boiler Reliability Maintenance System With Availability Ratio At PT. XXX: Analisa Sistem Perawatan Keandalan Boiler Dengan Rasio Availability Di PT. XXX. Procedia of Engineering and Life Science, 5, 125–131. https://doi.org/10.21070/pels.v7i0.1569