共 19 条
[11]
Irvine J.J., 1990, Black students and school failure: policies, practices, and prescriptions
[13]
Jencks C., 1998, BLACK WHITE TEST SCO, P1
[14]
*JOINT CTR POL STU, 1989, VIS BETT WAY BLACK A
[15]
*NAT COMM TEACH AM, 1996, WAHT MATT MOST TEACH
[19]
Wooldridge J.M., 2002, ECONOMETRIC ANAL CRO, V58