gong gong shi ye guan li gai lun=: an introduction to public affairs management/ Gong gong shi ye guan li gai lun=: An introduction to public affairs management/ xin xi guan li gai lun=: introduction to information management/ Xin xi guan li gai lun=: Introduction to information management/ yan sheng gong ju yu feng xian guan li/: an introduction to derivatives and risk management, Yan sheng gong ju yu feng xian guan li/: An introduction to derivatives and risk management,