Devi, Devi, and Noeroel Widajati. “RISK MANAGEMENT OF SHIP PASSENGER SERVICE OPERATIONAL OFFICERS USING THE HIRADC METHOD IN THE PORT INDUSTRY IN SURABAYA”. HEARTY 13, no. 4 (August 7, 2025): 1043–1051. Accessed December 5, 2025. https://ejournal.uika-bogor.ac.id/index.php/Hearty/article/view/18039.