Tarigan UPP, Jusra Tampubolon, Sembiring AC. Perbaikan Standar Operasional Prosedur Keselamatan Kerja menggunakan Metode Hazard and Operability di PT XYZ. JURITI PRIMA [Internet]. 2023 May 27 [cited 2025 Oct. 19];6(1). Available from: https://jurnal.unprimdn.ac.id/index.php/juriti/article/view/3072