Sharma, Sushil, and Jayesh Kumar Tiwari. “Some Common Fixed Point Theorems in Fuzzy 2-Metric Spaces”. Biological Sciences - PJSIR 48, no. 4 (August 29, 2005): 223–230. Accessed July 3, 2024. https://v2.pjsir.org/index.php/biological-sciences/article/view/1380.