Ridhani A. 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]. 2022 Dec. 25 [cited 2024 Jul. 6];1(9):899-905. Available from: https://jurnal.arkainstitute.co.id/index.php/nautical/article/view/490