Sixteenth-Order Steffensen-Ostrowski Approach for Nonlinear Problems with ​A​pplications in Celestial, Predator-Prey and Neural Activation​. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 18, n. 2, p. 5822, 2025. DOI: 10.29020/nybg.ejpam.v18i2.5822. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/5822. Acesso em: 5 dec. 2025.