共 10 条
[1]
Chen X Y, 1998, J HIGH ED RES, P33
[3]
JOHNSON EL, 1960, REV EC STATIST 2, V42, P44
[5]
Wu C N, 2004, ED EC, P63
[6]
Wu S J, 2004, ED EC, P6
[7]
Xu G X, 2003, ED EC, P23
[8]
Zha X Y, 2006, EC THEORY BUSINESS M, P41
[9]
Zhang J, 2004, ED EC, P37
[10]
Zhu Z M, 2003, ED EC, P11