ABDUL KADER YASIN TAHA; ABDUL RAHMAN S. JUMA. Fekete -Szego Problem for Certain Subclass of q-Difference Operator Using Quasi-Subordination. Tikrit Journal of Pure Science, [S. l.], v. 26, n. 6, p. 91–94, 2021. DOI: 10.25130/tjps.v26i6.197. Disponível em: https://tjpsj.org/index.php/tjps/article/view/197. Acesso em: 17 jun. 2025.