Nguyen Minh Tan, Le Van Thoai, and Ngo Thi Thao. “STUDY ON STRUCTURE AND MECHINCAL PROPERTIES OF WELD FOR HARDFACING BY RESISTANCE SEAM WELDING”. UTEHY Journal of Science and Technology, Vol. 20, Jan. 2019, pp. 9-15, http://tapchi.utehy.edu.vn/index.php/jst/article/view/54.