Seckler-Hudson, Catheryn, author
United State Information Service, 1959
Buku Teks
The America University, [date of publication not identified]
Buku Teks
McGraw-Hill, 1971
Buku Teks
Matherson, Ross, author
John Wiley & Sons, 1978
Buku Teks
Nadine Cristalia, author
Fakultas Hukum Universitas Indonesia, 2018
UI - Skripsi (Membership)