Fu, Siyuan, Chatchai Khiewngamdee, and Jianxu Liu. “The Impact of Digital Economy on China’s Coastal Foreign Trade--Mediation Effect Based on E-Commerce and Urbanisation Level”. International Journal of Science and Social Science Research 3, no. 1 (May 4, 2025): 75–83. Accessed June 25, 2026. https://www.ijsssr.com/index.php/j/article/view/379.