HARJAN, Eqbal Jabur. Results Concerning the Trace of Some Biadditive Mappings of Prime and Semiprime Rings. Al-Nahrain Journal of Science, [S. l.], v. 19, n. 3, p. 124–130, 2018. Disponível em: https://mail.anjs.edu.iq/index.php/anjs/article/view/217. Acesso em: 22 may. 2026.