Nguyen Van Huan, Nguyen Thi Hang, Nguyen Thi Hue. A digital transformation approach from traditional to virtual practice: A case study of gas welding corner-welding. VMOST JOSSH [Internet]. 2025Dec.20 [cited 2026Jul.15];67(3). Available from: https://vmostscience.vjst.vn/index.php/vmost_jossh/article/view/396