Phạm Bá Thịnh, & Nguyễn Thị Duyên. (2022). Applying the philosophy of "lmmutable, thousands of variables" of President Ho Chi Minh in the prevention and control of the Covid-19 pandemic at present in Vietnam . Tạp Chí Nghiên cứu Khoa học Công đoàn, (24), 33. Retrieved from https://vjol.info.vn/index.php/DHCD/article/view/67301