HAMZAT, J. O.; AKINWALE, F. I. Bi-Univalent Condition Associated with the Modified Sigmoid Function. Nepal Journal of Mathematical Sciences, [S. l.], v. 3, n. 1, p. 1–10, 2022. DOI: 10.3126/njmathsci.v3i1.44094. Disponível em: https://www.nepjol.info/index.php/njmathsci/article/view/44094. Acesso em: 2 may. 2024.