Nguyen Viet Ngu, and Nguyen Dinh Hung. “STUY AND IMPLEMENTATION OF EXPERIMENTAL EQUIPMENT CONTROLLED AND UNCONTROLLED RECTIFY CIRCUIT FOR SINGLE AND THREE PHASES”. UTEHY Journal of Applied Science and Technology, Vol. 16, Jan. 2018, pp. 31-37, http://jst.utehy.edu.vn/index.php/jst/article/view/141.