W. R. Simanjuntak, S. O. Hutapea, E. E. B. Ginting, H. Hakim, and M. Tahir, “The Influence of Leadership Style, Position Promotion and Work Stress on Employee Performance PT. Perkebunan Nusantara IV Regional II Adolina Gardens”, IJEST, vol. 3, no. 2, pp. 34–40, Aug. 2024.