G. Balasubramaniyan, V. Govindan, C. Muthamilarasi. General Solution and Stability of Quadratic Functional Equation. Int. J. Math. And Appl. [Internet]. 2017 Apr. 15 [cited 2025 Nov. 26];5(2 - A):13-6. Available from: http://ijmaa.in/index.php/ijmaa/article/view/791