1.Core J2EE�
Patterns: Best Practices and Design Strategies, Second Edition(Deepak Alur, John Crupi, Dan Malks)
2.Matering Enterprise JavaBeans<Third Edition> (Ed Roman, Rima Patel Sriganesh, Gerald Brose)
3.Sun Certified Enterprise Architect for J2EE Technology Study Guid(Mark Cade,Simon Roberts)
4.Sun Certified Enterprise Architect for J2EE Study Guide (Exam 310-051)(Paul Allen and Joseph Bambara)
5.Design Patterns-Elements of Reusable Object-Oriented Software(GOF)
6.Java Design Patterns: A Tutorial (James W. Cooper)