Ngoc Dung N, Chien Thang V. CONTACTLESS SERVICES IN VIETNAM’S HOSPITALITY INDUSTRY: CASE STUDIES OF THE JW MARRIOTT HANOI AND THE NOVOTEL HANOI THAI HA HOTEL. JFS [Internet]. 2022 Dec. 31 [cited 2025 Jul. 26];38(6):30-43. Available from: https://jfs.ulis.vnu.edu.vn/index.php/fs/article/view/4883