Atteya, Mehsin Jabel, and Dalal Ibraheem Resan. “COMMUTING AND 2-COMMUTING DERIVATIONS OF SEMIPRIME RINGS”. Journal of Kufa for Mathematics and Computer 1, no. 5 (May 30, 2012): 22–30. Accessed May 19, 2024. https://journal.uokufa.edu.iq/index.php/jkmc/article/view/2160.