Sarjono Putro, U., and I. P. A. Brihaspati. “HSSE (Health, Safety, Security, and Environment) Knowledge Program Prioritization Using Kepner-Tregoe Model in PT. Pertamina EP Regional 2 Zone 7”. European Journal of Business and Management Research, vol. 8, no. 5, Sept. 2023, pp. 76-87, doi:10.24018/ejbmr.2023.8.5.2094.