Rahmat Hasan , Nanda, and Retno Indriyati. “Optimalisasi Penerapan Prosedur Keselamatan Kerja Di PT. Pertamina (Persero) Ru-VI Balongan ”. Majalah Ilmiah Gema Maritim 22, no. 1 (March 31, 2020): 49-59. Accessed August 11, 2026. http://e-journal.akpelni.ac.id/index.php/Gema-Maritim/article/view/51.