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Zhihua Xie
Beijing nong chan pin liu tong yan jiu
Beijing nong chan pin liu tong yan jiu
Guo you zi ben yu suan jing ying yu guan li qian yan li lun yan jiu
Shen ji guan li (Zhongguo shang ye kuai ji xue hui, Zhongguo shang ye zhu suan xie hui cong shu)