Warning: file_get_contents(https://ojs.journalbusiness.my/ojs.php): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found in /var/www/ojs.unud.ac.id_backup/lib/pkp/includes/functions.inc.php on line 4 Gracia, B., Maddusa, S., & Malonda, N. (2025). Factors associated with the use of personal protective equipment (PPE) among firefighters in the Manado Fire Department. E-Jurnal Medika Udayana, 14(5), 52-57. doi:10.24843/MU.2025.V14.i5.P08