Tukur, Aliyu. 2023. “Simulation Of The Performance Of High Voltage Direct Current (Hvdc) System With Si-Gto And Sic-Gto Thyristors In Terms Of Efficiency ”. International Journal of Engineering and Mathematical Intelligence (IJEMI) 1 (1,2&3):129-37. http://icidr.org.ng/index.php/Ijemi/article/view/440.