Jun, Wen, Hamid Mahmood, and Muhammad Zakaria. “Impact of Trade Openness on Environment in China”. Journal of Business Economics and Management 21, no. 4 (June 19, 2020): 1185-1202. Accessed February 23, 2025. https://btp.vilniustech.lt/index.php/JBEM/article/view/12050.