G. Balasubramaniyan, V. Govindan, C. Muthamilarasi. General Solution and Stability of Quadratic Functional Equation. Int. J. Math. And Appl. [Internet]. 2017 Apr. 15 [cited 2024 Jul. 22];5(2 - A):13-6. Available from: https://ijmaa.in/index.php/ijmaa/article/view/791