sap论坛大全

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http://www.erpkm.com

 

 http://qiangsheng.cnblogs.com/

http://www.itpub.net/thread-1191617-1-1.html 

abap

http://www.cnblogs.com/sapvip/category/116192.html

非常好的blog

http://blog.163.com/ibm_wuty/blog/