Nagrath I J, Kothari D P, . (2002). Electric Machines. Delhi: TATA MC GRAW HILL.
Nagrath I J, Kothari D P, . 2002. Electric Machines. Delhi: TATA MC GRAW HILL.
Nagrath I J, Kothari D P, . Electric Machines. Delhi: TATA MC GRAW HILL. 2002.