Some Common Fixed Points Theorems of Four Weakly Compatible Mappings in Metric Spaces. Baghdad Science Journal, Iraq, Baghdad, v. 18, n. 3, p. 0543, 2021. DOI: 10.21123/bsj.2021.18.3.0543. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/4637.. Acesso em: 1 may. 2024.