Nasr A. Elghaffar, Amer, Ali M. Eltamaly, Yehia Sayed, and Abou-Hashema M. El-Sayed. 2018. “Mitigation Voltage Sag Using DVR With Power Distribution Networks for Enhancing the Power System Quality”. International Journal of Electrical Engineering and Applied Sciences (IJEEAS) 1 (2):61-68. https://ijeeas.utem.edu.my/ijeeas/article/view/4551.