Hekmat Mahmood, Auday, Salah Mehdi Salih, and Radwan Mohammed Al-Omary. “Jordan Higher ⋆-Left (Accordingly Right)-Centralizers on Prime Rings With Involution”. Al-Nahrain Journal of Science 28, no. 2 (June 15, 2025): 189–191. Accessed May 22, 2026. https://mail.anjs.edu.iq/index.php/anjs/article/view/2779.