Nguyen, Pham Phương Anh, Minh Trang Nguyen, and Truc Chi Tran. “Vietnam’s Socioeconomic Status Influence on the Passport Power”. GPH-International Journal of Business Management 6, no. 10 (October 23, 2023): 234-251. Accessed July 3, 2024. https://gphjournal.org/index.php/bm/article/view/1064.