Fawaz Ra’ad Jarullah. “An Orthogonal Left Centralizer and Reverse Left Centralizer on Semiprime Rings”. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 13, no. 2 (April 5, 2022): 625–630. Accessed May 5, 2024. https://turcomat.org/index.php/turkbilmat/article/view/12365.