EL-ASHWAH, R. M.; HASSAN, A. H. . Some Properties of Certain New Subclasses of Analytic Functions: Some Properties of Certain New Subclasses of Analytic Functions. Proceedings of the Pakistan Academy of Sciences: A. Physical and Computational Sciences, [S. l.], v. 53, n. 1, p. 1–16, 2021. Disponível em: https://ppaspk.org/index.php/PPAS-A/article/view/353. Acesso em: 18 sep. 2021.