Argaç, N., and Ç. Demir. “A Result on Generalized Derivations on Right Ideals of Prime Rings”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 64, no. 2, Feb. 2012, pp. 165-7, https://umj.imath.kiev.ua/index.php/umj/article/view/2563.