Ampadu, Clement Boateng. “The Interpolative Berinde Weak Mapping Theorem in η-Cone Pentagonal Metric Space”. Earthline Journal of Mathematical Sciences 5, no. 2 (September 26, 2020): 251-266. Accessed November 22, 2024. https://earthlinepublishers.com/index.php/ejms/article/view/239.