Yu Guo has written:
'Achang zu ='
Juan Yu has written: 'Ying bao guo fei'
Sike Guo has written: 'Yu qi =' -- subject(s): Jade art objects
Chaogui Yu has written: 'San guo yan yi tan lun'
Yuanchen Guo has written: 'Wudi wen xue yu yi shu chu tan'
Shouguo Guo has written: 'Zhu bao yu shi' -- subject(s): Precious stones
Fumei Guo has written: 'Fu mu ye shi xing jiao yu gao shou'
Binggui Yu has written: 'Zhongguo guo jia wen hua an quan yan jiu'
Yuling Guo has written: 'Shi yong Han yu chang yong cheng yu 1000 li =' -- subject(s): Idioms, Chinese language
Ruitang Guo has written: 'Yin jin yu he zuo' -- subject(s): Joint ventures, Law and legislation
Runsheng Yu has written: 'Huang Yanpei yu Zhongguo min zhu jian guo hui =' -- subject(s): Biography, History, Scholars, Zhongguo min zhu jian guo hui
Xijie Guo has written: 'Ping mian san jiao jie zheng fang fa yu ji qiao'
Zu Ri. has written: 'Zhong guo cheng yu gu shi'