THERAJA , B. L. A TEXTBOOK OF ELECTRICAL TECHNOLOGY VOLUME III TRANSMISSION , DISTRIBUTION & UTILIZATION IN S.I SYSTEM OF UNITS. - RAM NAGAR; NEW DELHI S. CHAND 2005 - XIV;1570- 2016P.:24CM N ISBN: 9788121924900 Subjects--Index Terms: Y LC Class. No.: TK146 / .T44