The Effect of Transformational Leadership Style, Reward, and Punishment on Employee Work Discipline at PT Bakrie Sumatera Plantations Tbk Serbangan Estate. ICONAMI [Internet]. 2025 Mar. 3 [cited 2026 Mar. 10];1:72-85. Available from: https://journal.utu.ac.id/index.php/ICONAMI/article/view/37