Tohutoro APA (7th ed.)
G.K.Publishers. (2009). U.P.S.C (IES) engineering services examination (solved papers): Electrical engineering. G. K. Pub.
Tohutoru Kātū Chicago (17th ed.)
G.K.Publishers. U.P.S.C (IES) Engineering Services Examination (solved Papers): Electrical Engineering. Noida: G. K. Pub, 2009.
Tohutoro MLA (9th ed.)
G.K.Publishers. U.P.S.C (IES) Engineering Services Examination (solved Papers): Electrical Engineering. G. K. Pub, 2009.
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