add more information

Author: AmandaAZ

support/entra/entra-id/users-groups-entra-apis/identity-of-calling-application-not-established.md

@@ -34,5 +34,11 @@ Then, sign in with a Global Administrator account of the tenant where you are tr
 > - Replace `{organization}` with the tenant ID, for example, aaaaaaaaaaaa-bbbb-cccc-1111-22222222.
 > - Replace `{client-id}` with the Application ID of the application, for example, dddddddddddd-eeee-ffff-3333-44444444.
 
+## References
+
+- [Understanding Microsoft Entra application consent experiences](/entra/identity-platform/application-consent-experience)
+- [Overview of permissions and consent in the Microsoft identity platform](/entra/identity-platform/permissions-consent-overview)
+- [Retire Service Principal-Less Authentication](/entra/identity-platform/retire-service-principal-less-authentication)
+
 
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