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Dyfyniad Arddull ChicagoArrillaga, J., and Y.H. Watson Liu. Flexible Power Transmission: The HVDC Options. Chichester: John Wiley & Sons, 2007.
Dyfyniad MLAArrillaga, J., and Y.H. Watson Liu. Flexible Power Transmission: The HVDC Options. John Wiley & Sons, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.