哪位大侠有Multilevel analysis. An introduction to basic and advanced这本书阿，作者是<a href="http://www.amazon.com/exec/obidos/search-handle-url/104-0255390-4523103?%5Fencoding=UTF8&search-type=ss&index=books&field-author=Tom%20A.B.%20Snijders">Tom A.B. Snijders</a> 小弟急需阿，多谢拉，我的邮箱是<a href="mailto:aldenhan@sina.com.cn">aldenhan@sina.com.cn</a>