Transformational Leadership in Facing VUCA (Volatility, Uncertainty, Complexity, Ambiguity) Challenges: A Case Study at PT Telkom Kediri Branch. JMB [Internet]. 2026 Jan. 13 [cited 2026 Feb. 5];13(1):43-9. Available from: https://jurnal.fe.umi.ac.id/index.php/JMB/article/view/1287