The Perspective of Enterprise Accounting Manager: Liu Dongming, edited by zhangyan Page: 435 Press: Beijing: Renmin University of China Press Date: 20 10. 10.
Author of financial management: Wang Qingcheng, edited by Li Xiangguo. Page 652 Press: Beijing: China Financial and Economic Press. Date of publication: June 2006.
Theory and Practice of International Trade Author: Leng Baijun, ed., Page 365: Beijing: Renmin University of China Press, Date of publication: 20 12.05.
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