Rao, KPR, A Sombabu, and J Rajendra Prasad. “A Common Fixed Point Theorm for Six Expansive Mappings in G-Metric Spaces”. Kathmandu University Journal of Science Engineering and Technology 7, no. 1 (January 28, 2011). Accessed September 19, 2024. https://journals.ku.edu.np/kuset/article/view/310.