Aprillia, D., H. Widhiandono, S. Suyoto, and N. Nazah. “The Influence of Transformational Leadership and Self-Efficacy on Employee Performance With OCB As a Mediating Variable at PT Star (Semen Bima Corporation) Ajibarang”. Journal of Management : Small and Medium Enterprises (SMEs), Vol. 19, no. 2, Aug. 2026, pp. 2053-7, doi:10.35508/jom.v19i2.29879.