Firliana, D., P. Harahap, and S. Sujito. “THE INFLUENCE OF EMPLOYEE COMPETENCE, COMMITMENT AND PROMOTION ON WORK ACHIEVEMENT WITH MOTIVATION AS A MEDIATION VARIABLE”. International Journal of Social and Management Studies, vol. 4, no. 5, Nov. 2023, pp. 92-101, doi:10.5555/ijosmas.v4i5.366.