Tri Danica Sinaga and Nicholas Marpaung 2024. The Influence of Self Efficacy and Locus of Control on Employee Work Productivity (Study at PT Perkebunan Nusantara IV Adolina). Journal of Finance and Business Digital. 2, 4 (Jan. 2024), 571–586. DOI:https://doi.org/10.55927/jfbd.v2i4.6536.