Naibaho, D. J., Y. Yulfiswandi, and C. Candy. “Transformational, Transactional, Democratic Leadership Effects on Employee Performance Mediated Knowledge Sharing at KB Bank Sumatera”. Jurnal Relevansi : Ekonomi, Manajemen Dan Bisnis, vol. 10, no. 5, Oct. 2026, pp. 1303-17, doi:10.61401/relevansi.v10i5.672.