KOTHARI D.P, NAGRATH I.J, . (2012). BASIC ELECTRICAL ENGINEERING. NEW DELHI: TATA MCGRAW HILL PUB.
KOTHARI D.P, NAGRATH I.J, . 2012. BASIC ELECTRICAL ENGINEERING. NEW DELHI: TATA MCGRAW HILL PUB.
KOTHARI D.P, NAGRATH I.J, . BASIC ELECTRICAL ENGINEERING. NEW DELHI: TATA MCGRAW HILL PUB. 2012.