THNERAJA BL & THERAJA AK, . (2008). TEXTBOOK OF ELECTRICAL TECHNOLOGY - Vol -2. : S.CHAND & CO.LTD.
THNERAJA BL & THERAJA AK, . 2008. TEXTBOOK OF ELECTRICAL TECHNOLOGY - Vol -2. : S.CHAND & CO.LTD.
THNERAJA BL & THERAJA AK, . TEXTBOOK OF ELECTRICAL TECHNOLOGY - Vol -2. : S.CHAND & CO.LTD. 2008.