Raza, Mohd Arif, Mohammad Shadab Khan, and Nadeem ur Rehman. “Derivations of Rings and Banach Algebras”. Italian Journal of Pure and Applied Mathematics 42 (July 30, 2019): 141–153. Accessed October 27, 2026. https://journals.uniurb.it/index.php/ijpam/article/view/7252.