Rubanraj, S., and P. Rajkumar. “Numerical Solution of Fuzzy Differential Equation by Fifth Order Runge- Kutta-Fehlberg Method”. International Journal Of Mathematics And Computer Research, Vol. 4, no. 04, Apr. 2016, pp. 1317-24, http://ijmcr.in/index.php/ijmcr/article/view/36.