Noel, Emile
The Institute of the European Community, 1979
Buku Teks
Pruett, Jon
Chicago Review Press, 2004
Buku Teks
Willis, Barry R
Pine Valley Music, 1989
Buku Teks
Napitupulu, Elviera
1989
UI - Skripsi (Membership)
Boyden, David D.
Alfred A. Knopf , 1956
Buku Teks