John M. Rassias, Matina J. Rassias, M. Arunkumar, and E. Sathya. 2017. “$\alpha-$Cubic and $\beta-$Cubic Functional Equations”. International Journal of Mathematics And Its Applications 5 (3 - C):215-31. http://ijmaa.in/index.php/ijmaa/article/view/869.