Wu, Meng, Mohamad Fazli Sabri, Anthony Ang Sang Nang, and Chen Meng. “Impact Analysis of Hainan Duty-Free Policy Optimization on Tourists’ Purchasing Decision-Making Behavior”. International Journal of Social Sciences and Public Administration 7, no. 2 (June 13, 2025): 110–118. Accessed August 6, 2026. https://ijsspa.org/index.php/ojs/article/view/99.