Abbas Kareem Wanas, and Sibel Yalçın. “Initial Coefficient Estimates for a New Subclasses of Analytic and M-Fold Symmetric Bi-Univalent Functions”. Malaya Journal of Matematik 7, no. 03 (July 1, 2019): 472–476. Accessed November 21, 2024. https://www.malayajournal.org/index.php/mjm/article/view/739.