Jia, Songbo, Xin Gao, Xiaowen Zhu, Jianxiang Xu, and Yuanyuan Liu. “The Influence of External Economic Policy Fluctuation on Enterprise Productivity: Based on Chinese Listed Enterprises”. Technological and Economic Development of Economy (November 6, 2024): 1-25. Accessed December 19, 2024. https://mla.vilniustech.lt/index.php/TEDE/article/view/22410.