信信用証应用常识信用証应用常识de Zhen ChenMateriasLetters of creditEdiciones (1)信用証应用常识 (1988)Zhongguo dui wai jing ji mao yi chu ban she · chinoMás obras de Zhen ChenCChen Zhen yi shu zhanChen Zhen yi shu zhanJing ji zeng chang de jiu ye xiao ying yan jiu2007JJin yu jia hua shi yu pin zhong xing cheng di yin suJin yu jia hua shi yu pin zhong xing cheng di yin su1955
JJin yu jia hua shi yu pin zhong xing cheng di yin suJin yu jia hua shi yu pin zhong xing cheng di yin su1955