Ogbotor, Maxwell Smith, and Mbagwu Ignatius Nwabudo. “The Effectiveness of Performance Management Systems in Driving Employee Productivity”. Review of Human Resources, Organizational Change, and Economic Impact 1, no. 3 (September 3, 2025): 110–120. Accessed January 26, 2026. https://www.ojs.proaksara.com/index.php/rhrocei/article/view/122.