Chumba, R. J., P. K’Obonyo, F. Muindi, and J. Njihia. “Moderating Effect of Employee Competence on the Relationship Between Employee Reward and Nurses Job Performance in Kenyan National Referral Hospitals”. Journal of Human Resource & Leadership, vol. 2, no. 5, Nov. 2018, pp. 1-23, https://stratfordjournals.org/journals/index.php/journal-of-human-resource/article/view/208.