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Dyfyniad Arddull ChicagoVasu,K K, Hemachadran,M M, and Unnikrishnan,R. Vaidyutha Upayoganam: Electrical Utilisation. Thiruvananthapuram: State institute of languages, 1981.
Dyfyniad MLAVasu,K K, et al. Vaidyutha Upayoganam: Electrical Utilisation. State institute of languages, 1981.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.