Mustakim, Didik, and Nur Rokhman. “Electronic Permit to Work (e-PTW) System As an Effort to Control Hot Work Risks and Fire Protection System Safety at PT. XYZ”. KESANS : International Journal of Health and Science 5, no. 9 (June 25, 2026): 1668–1681. Accessed June 25, 2026. https://kesans.rifainstitute.com/index.php/kesans/article/view/651.