Odies S, Y.; Cahyana, A. S. Design of Preventive Maintenance Scheduling for Vacuum Feeder Line 4 Machine Using Microsoft Project Based on Pareto Analysis to Reduce Downtime: Perancangan Penjadwalan Preventive Maintenance Mesin Vacuum Feeder Line 4 Menggunakan MS Project Berdasarkan Analisis Pareto Untuk Mengurangi Downtime. ijins 2026, 27, 10.21070/ijins.v27i2.2439.