Rao, B. S., L. V. Kumar, C. Maheswari, and S. M. Shaw. “On Certain Quadruple Fixed Points of Integral Type Contraction Mappings in G-Metric Spaces and Its Applications”. Journal of Scientific Research 14, no. 2 (May 1, 2022): 501–512. Accessed August 16, 2024. https://banglajol.info/index.php/JSR/article/view/56189.