Irfan Ramdani, et al. “A RISK ANALYSIS OF OCCUPATIONAL SAFETY LEVELS FOR OPERATORSON COMPANY X USING A HAZOP METHOD WITH AN FTA APPROACH”. PalArch’s Journal of Archaeology of Egypt Egyptology, vol. 17, no. 5, Dec. 2020, pp. 735-4, https://www.archives.palarch.nl/index.php/jae/article/view/2874.