Manurung, S., and P. Desiana. “The Influence of Transformational Leadership on Job Performance Mediated by Affective Commitment, Work Engagement, and Self-Efficacy (Case Study: Government Procurement Unit)”. Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE), Vol. 8, no. 2, May 2025, pp. 5793-17, doi:10.31538/iijse.v8i2.6104.