Ravi, K., R. Murali, and E. Thandapani. “Fuzzy Stability of Euler-Lagrange Type Cubic Functional Equation: A Fixed Point Approach”. Journal of Informatics and Mathematical Sciences 4, no. 1 (April 1, 2012): 65–75. Accessed May 3, 2024. http://rgnpublications.com/journals/index.php/jims/article/view/68.