Fata AS, Putra G. Analysis of Noise Levels in the Engine Room & St. Kernel Using the National Institute for Occupational Safety and Health (NIOSH) Method in PT. Karya Tanah Subur. JI [Internet]. 2023Feb.17 [cited 2026Jun.17];8(1):99-106. Available from: https://inotera.poltas.ac.id/index.php/inotera/article/view/214