Galib Atshan, Waggas, and Rafid Habib Buti. “Fractional Calculus of a Class of Univalent Functions With Negative Coefficients Defined by Hadamard Product With Rafid -Operator”. European Journal of Pure and Applied Mathematics 4, no. 2 (May 17, 2011): 162–173. Accessed June 3, 2023. https://www.ejpam.com/index.php/ejpam/article/view/1174.