ABBAS, Y. W. .; NAYYEF , F. A. .; ATSHAN, W. G. . New Results on Fourth-Hankel Determinant of a Certain Subclass of Analytic Functions. Journal of natural and applied sciences , [S. l.], v. 1, n. 10, p. 226–239, 2026. Disponível em: https://uraljournal.remahcenter.com/papers/index.php/ural/article/view/26. Acesso em: 30 jun. 2026.