Lotfy, F., and J. Hassanzadeh Asl. “Fixed Point Theorems of \(\alpha_*\)-\(\psi\)-Common Rational Type Contractive Order Closed Set-Valued Mappings on Generalized Metric Spaces”. Journal of Informatics and Mathematical Sciences 12, no. 4 (December 31, 2020): 299–316. Accessed November 24, 2024. http://rgnpublications.com/journals/index.php/jims/article/view/1492.