Oktaviani H, Lestari IAID, Hardianti DN, Sultan M, Wardani R. Hubungan Antara Penerapan Program Pelatihan K3, Pengawasan K3, dan Komunikasi K3 dengan Produktivitas Pekerja Pada Mining Operation Division PT. Kaltim Prima Coal : The Relationship Between Occupational Health and Safety (OHS) Training, Supervision, and Communication and Workers’ Productivity in the Mining Operation Division of PT Kaltim Prima Coal. J Kesmas Untika Luwuk Public Heal J. [Internet]. 2026 Jun. 30 [cited 2026 Sep. 8];17(1):70-8. Available from: https://www.journal-fkm.untika.ac.id/phj/article/view/465