Yijun Xian jun shi zhi (gong yuan qian 215 nian - gong yuan 2005 nian)Yijun Xian jun shi zhi bian zuan wei yuan hui · First published 2008Open the Tome
Mian xiang quan qiu shi chang de Zhongguo fu wu ye fa zhanYijun Yuan · First published 2008Open the Tome
Ke ji zhong jie ji gou de fa zhan yu guan li = Development and management of technical intermediariesYijun Yuan · First published 2007Open the Tome
