Matoke, Kaunda C., Donald Odongo, and N.B Okelo. “Characterizations of Derivations on Prime Rings”. International Journal of Modern Computation, Information and Communication Technology 1, no. 2 (December 28, 2018): 121–125. Accessed April 13, 2026. https://www.gjpublications.com/index.php/IJMCICT/article/view/31.