Siswanto, S., Rahayu, S. and Fitrianty, R. 2026. THE MEDIATING ROLE OF WORK DISCIPLINE IN THE RELATIONSHIP BETWEEN EDUCATION LEVEL, COMPETENCY, AND CAREER DEVELOPMENT: EVIDENCE FROM INDONESIAN MARITIME PORT AUTHORITY OFFICERS. Journal Informatic, Education and Management (JIEM). 8, 2 (Jun. 2026), 461-474. DOI:https://doi.org/10.61992/jiem.v8i2.389.