Phan Thi Ha Linh, Than Van The, and Luyen The Thanh. “EFFECT OF TEMPERATURE, FRICTION, AND PRESSING SPEED ON FORMING FORCE IN BULK FORMING OF GEAR DETAILS FROM TUBE WORKPIECE”. Journal of Applied Science and Technology, Vol. 38, June 2023, pp. 80-85, http://jst.utehy.edu.vn/index.php/jst/article/view/858.