WASET
Luo, G. , Zhang, D. , Koh, Y. , Ng, K. , Kurniawan, H. , Leong, W. (2012). 'An Advanced Time-Frequency Domain Method for PD Extraction with Non-Intrusive Measurement'. World Academy of Science, Engineering and Technology, Open Science Index 62, International Journal of Electrical and Computer Engineering, 6(2), 167 - 173.