Abdul kader Yasin Taha, Abdul Rahman S. Juma. Fekete -Szego Problem for Certain Subclass of q-Difference Operator Using Quasi-Subordination. Tikrit J. Pure Sci. [Internet]. 2021 Dec. 14 [cited 2024 Jul. 3];26(6):91-4. Available from: https://tjps.tu.edu.iq/index.php/tjps/article/view/197