DEY, K. K.; PAUL, A. C. Permuting Tri-Derivations of Semiprime Gamma Rings. Journal of Scientific Research, [S. l.], v. 5, n. 1, p. 55–66, 2012. DOI: 10.3329/jsr.v5i1.9549. Disponível em: https://banglajol.info/index.php/JSR/article/view/9549. Acesso em: 6 feb. 2023.