Ma, Jian. “Expansion of Paddy Farming in the Northeast Region of China and Its Impact on the Local Environment: Case Studies of Baicheng and Da’an Cities, Jilin Province”. WILAYAH: The International Journal of East Asian Studies 4, no. 1 (December 15, 2015): 55–62. Accessed November 1, 2024. http://jummec.um.edu.my/index.php/IJEAS/article/view/18832.