SQL Server 2012 Licensing Model requirement.

Hi , 

I've query in my licensing of SQL Server 2012. 

Following are my request. 

Virtual  Server-1     Virtual Server-2     Virtual Server-3     Virtual Server - 4       Virtual Server - 5 

Core : 4      Core  6     Core 8 Core 8         Core 8 

  Above is my DB Server Implementation. Pls. let me know how many 2012 DB License I should be procured. We're entitled with non-profit license from Microsoft. Can you clarify on this.