S. Joseph Jawhar, N.S. Marimuthu and N. Albert Singh
International Journal of Electrical and Power Engineering 1 ( 1 ): 43 - 46 , 2007
M. Marsaline Beno, N.S. Marimuthu and N. Albert Singh
International Journal of Electrical and Power Engineering 1 ( 2 ): 215 - 221 , 2007