EL-Adawy, T. M., and N. H. Abd-Alla. “A Fixed Point Results Of -Distance In Complete Metric Spaces”. Journal of Qassim University for Science 11, no. 1 (January 27, 2018): 29–43. Accessed December 4, 2024. https://jnsm.qu.edu.sa/index.php/jnm/article/view/1822.