Seotlela, Rankadimeng Percy Job, and Ogutu Miruka. “Implementation Challenges of Performance Management System in the South African Mining Industry”. Mediterranean Journal of Social Sciences 5, no. 7 (April 30, 2014): 177. Accessed April 2, 2023. https://www.richtmann.org/journal/index.php/mjss/article/view/2471.