Kamali, Muhammet, and Alina Riskulova. “On the Upper Bounds of Hankel Determinants for Some Subclasses of Univalent Functions Associated With Sine Functions”. An International Journal of Optimization and Control: Theories & Applications (IJOCTA) 14, no. 1 (December 12, 2023): 41–49. Accessed January 22, 2025. http://ijocta.org/index.php/files/article/view/1392.