Wiweko, Albert, et al. “THE EFFECT OF VESSEL SEAWORTHINESS AND CREW’S COMPETENCE ON MARINE SAFETY”. Jurnal Manajemen Transportasi & Logistik (JMTRANSLOG), vol. 2, no. 3, Nov. 2015, pp. 287-96, doi:10.54324/j.mtl.v2i3.110.