Nagrath I J &, Kothari D P, . (2002). Electric Machines. New Delhi: TATA McGRAW HILL.
Nagrath I J &, Kothari D P, . 2002. Electric Machines. New Delhi: TATA McGRAW HILL.
Nagrath I J &, Kothari D P, . Electric Machines. New Delhi: TATA McGRAW HILL. 2002.