Kamwenji, R. W. ., P. P. K. . Ngugi, and D. M. . Kamaara. “Influence of Non-Financial Rewards on Employee Performance in the State Corporations in Kenya”. Human Resource and Leadership, vol. 2, no. 2, Nov. 2022, pp. 1-10, https://edinburgjournals.org/journals/index.php/journal-of-human-resource/article/view/127.