Arunkumar, M., and S. Karthikeyan. “Solution and Intuitionistic Fuzzy Stability of N- Dimensional Quadratic Functional Equation: Direct and Fixed Point Methods”. International Journal of Advanced Mathematical Sciences 2, no. 1 (January 10, 2014): 21–33. Accessed November 23, 2024. https://sciencepubco.com/index.php/IJAMS/article/view/1498.