Table fields for Cost element group in SAP-FICO

Dear Gurus,

I have found the table COSP-KSTAR for extracting cost element in SAP-FICO.

Now the problem is that there are around 400 cost element assigned to a cost element group and I am unable to identify the table from where to fetch this i.e. establish the relation between cost-element(of table COSP) and cost-element group(Table unknown ??) .

Please help.


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