THERAJA B.L, TEHRAJA A.K, . (2001). A TEXTBOOK OF ELECTRICAL TECHONOLGY V-I. NEW DELHI: S.CHAND AND COMPANY PVT.LTD.
THERAJA B.L, TEHRAJA A.K, . 2001. A TEXTBOOK OF ELECTRICAL TECHONOLGY V-I. NEW DELHI: S.CHAND AND COMPANY PVT.LTD.
THERAJA B.L, TEHRAJA A.K, . A TEXTBOOK OF ELECTRICAL TECHONOLGY V-I. NEW DELHI: S.CHAND AND COMPANY PVT.LTD. 2001.
