Thi-Thao Ngo, Ngoc-Thanh Tran, & Van-The Than. (2019). SOLVING HEAT TRANSFER PROBLEM IN ULTRASONIC WELDING BASED ON HYBRID SPLINE DIFFERENCE METHOD. UTEHY Journal of Applied Science and Technology, 23, 13-19. Retrieved from http://jst.utehy.edu.vn/index.php/jst/article/view/45