MUAYYAD MAHMOOD KHALIL. A SINGLE MUTUAL FIXED POINT THEOREM USING Փ- CONTRACTION IN PARTIAL –b– METRIC SPACES. Tikrit Journal of Pure Science, [S. l.], v. 22, n. 6, p. 140–143, 2023. DOI: 10.25130/tjps.v22i6.802. Disponível em: https://tjps.tu.edu.iq/index.php/tjps/article/view/802. Acesso em: 20 may. 2024.