Zahira Itsna Uswatun Hasanah, Karina Nur Ramadhanintyas and Retno Widiarini 2026. The Relationship between Occupational Safety and Health (K3) Knowledge and Machine Work Productivity at UPT Crew Madiun Train. ARMADA : Jurnal Penelitian Multidisiplin. 4, 8 (Aug. 2026), 4154–4163.