Occupational health services as an effort to increase the health of workers at PT Petrokimia Gresik during the covid-19 pandemic. Jurnal Ilmiah Multidisiplin Indonesia [Internet]. 2023 Mar. 25 [cited 2025 Sep. 27];1(12):899-905. Available from: https://jurnal.arkainstitute.co.id/index.php/nautical/article/view/490