“EVALUATING THE EFFECTIVENESS OF PERFORMANCE APPRAISALS AND THE IMPACT OF PERFORMANCE REMUNERATION ON EMPLOYEES’ MOTIVATION: A CASE STUDY OF A CHEMICALS AND WASTE MANAGEMENT BRANCH AT THE DEPARTMENT OF ENVIRONMENTAL AFFAIRS (SOUTH AFRICA)”. 2015. Singaporean Journal of Business Economics and Management 3 ((9): 10-44. https://www.singaporeanjbem.com/index.php/SJBEM/article/view/276.