Chumba, Dr. Rhoda Jelagat. 2020. “The Joint Effect of Employee Rewards, Engagements, Competence and Job Demands on Job Performance of Nurses in Kenyan National Referral Hospitals”. Journal of Human Resource & Leadership 4 (3):51-68. https://stratfordjournal.org/journals/index.php/journal-of-human-resource/article/view/537.