Aditya, Falah Dwi, et al. “RISK MANAGEMENT IN NGBC PLANT USING HAZARD IDENTIFICATION RISK ASSESSMENT AND RISK CONTROL (HIRARC) AT PT XYZ”. CENTRAL ASIA AND THE CAUCASUS, vol. 23, no. 1, Jan. 2022, pp. 4517-25, https://ca-c.org/CAC/index.php/cac/article/view/445.