A . Nurfajri Irwan, et al. “IoT-Based Competency Tracking Systems for Seafarer Training Management: Automated Performance Monitoring and Skill Gap Identification in Indonesian Maritime Academies”. IJISIT: International Journal of Computer Science and Information Technology, vol. 2, no. 2, Dec. 2025, pp. 163-7, doi:10.55123/ijisit.v2i2.55.