Isa Ismaila, Hauwa Lamino, and Bashir Garba Ibrahim. “Effect of Performance Management on Employee Engagement in Nigerian National Petroleum Corporation (NNPC)”. International Journal of Management and Human Science (IJMHS) 6, no. 1 (January 1, 2022): 1-18. Accessed June 30, 2022. https://ejournal.lucp.net/index.php/ijmhs/article/view/1540.