Hikmaturriza, Mesra B, Muhammad Isa Indrawan and Kiki Farida Ferine 2025. THE EFFECT OF COMPETENCE AND CAREER IMPROVEMENT ON PERFORMANCE WITH OCCUPATIONAL HEALTH AND SAFETY AS INTERVENING VARIABLES AT PT PLN (PERSERO) UP3 PEMATANGSIANTAR. Multidiciplinary Output Research For Actual and International Issue (MORFAI). 4, 3 (Aug. 2025), 2036–2045. DOI:https://doi.org/10.54443/morfai.v4i3.3561.