Marfuah, R., and E. D. Handayani. “Noise Risk Assessment Using Noise Mapping Analysis Method and Noise Control at a Steel Company in Cilegon”. The Indonesian Journal of Occupational Safety and Health, vol. 11, no. 1, Mar. 2022, pp. 103-14, doi:10.20473/ijosh.v11i1.2022.103-114.