Cooley, Thomas M.
Little, Brown and Company, 1898
Buku Teks
Dean, Vera Micheles, author
Harvard University Press, 1948
Buku Teks
Muhamad Nabhan Amin, author
Fakultas Hukum Universitas Indonesia, 2020
UI - Skripsi (Membership)
Wilson, Woodrow
Columbia University, [date of publication not identified]
Buku Teks
Morehead, Joe, author
Libraries Unlimited, 1978
Buku Teks