Krishna Chaitanya Diggavi and M. Ramu
International Journal of Electrical and Power Engineering 6 ( 3 ): 94 - 99 , 2012
M. Ramu, L. Ravi Srinivas and S. Tara Kalyani
Journal of Engineering and Applied Sciences 13 ( 3 SI ): 3314 - 3320 , 2018