AL-khafaji, Aqeel Ketab, Waggas Galib Atshan, and Salwa Salman Abed. “On a Differential Subordination of a Certain Subclass of Univalent Functions”. Journal of Kufa for Mathematics and Computer 5, no. 3 (January 14, 2019): 11–16. Accessed May 17, 2024. https://journal.uokufa.edu.iq/index.php/jkmc/article/view/2081.