Darwis M, Muchlisa D, Siagian AO. The Effectiveness of the Occupational Health and Safety Management System at PT. PLN (Persero). Gnosi : Interdiscip. J. Human Theo. Praxis [Internet]. 2021Jan.4 [cited 2025Nov.18];3(3):120-9. Available from: http://www.gnosijournal.com/index.php/gnosi/article/view/77