Fixed point theorem for S-phi-psi-F-contraction mappings in ordered partial metric space with an application to integral equation. Nonlinear Studies, [S. l.], v. 28, n. 4, 2021. Disponível em: https://www.nonlinearstudies.com/index.php/nonlinear/article/view/2545. Acesso em: 15 mar. 2026.