Power quality analysis and classification using time-frequency (TF) and maximum margin criterion (MMC) / by Zuraini Yahya, Ismail Kamarulafizam, Sheikh Hussain Shaikh Salleh, 1958-, S. Sabrina, Mohd. Rushaidin Muhamed, Ting, Chee Ming, International Conference on Man-Machine system (2006 : Kedah)