Faridan, M. . “Co Exposure to Noise and Ototoxic Substances in the Workplace; An Outlook on the EU-OSHA Literature Review (European Agency for Safety and Health at Work)”. Health, Safety and Environment , vol. 2, no. 5, Nov. 2020, pp. 123-4, http://sjournals.com/index.php/hse/article/view/1539.