WASET
    H. H. Goh and  Q. S. Chua and  S. W. Lee and  B. C. Kok and  K. C. Goh and  K. T. K. Teo,  Comparative Study of Line Voltage Stability Indices for Voltage Collapse Forecasting in Power Transmission System.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2015, vol. 98(2). 132 - 137
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10000247.