winarso, aris, Gito Sumarno, and Muhammad Fardan. “ANALISIS IMPLEMENTASI SISTEM MANAJEMEN KESELAMATAN PERTAMBANGAN BATUBARA DI PLANT SUPPORT EQUIPMENT DEPARTMENT”. ReTII (November 26, 2018). Accessed April 16, 2025. https://journal.itny.ac.id/index.php/ReTII/article/view/780.