Kintner, William R
Henry Regnery Comapany, 1962
Buku Teks
Dake, Antonie C. A.
Mouton, 1973
Buku Teks
Sri Sesanti Mulyaningrum
1996
UI - Skripsi (Membership)
Swearingen, Rodger
American Bar Association, 1967
Buku Teks
World Anti-Communist League, 1987
Buku Teks