Nguyễn Thị Mỹ Hằng (2020) “Experience of some countries before industrial revolution 4.0 and suggestions for Vietnam”, Tạp chí Nghiên cứu Khoa học Công đoàn, (15), p. 32. Available at: https://vjol.info.vn/DHCD/article/view/51694 (Accessed: 26May2026).