WASET
    Jin-Lung Guan and  Ming-Ta Yang and  Jhy-Cherng Gu and  Hsin-Hung Chang and  Chin-Lung Huang,   The Effect of Harmonic Power Fluctuation for Estimating Flicker .   journal   = {International Journal of Energy and Power Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2007, vol. 4(4). 640 - 645
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/7022.