Laski, Harold J., author
George Allen and Unwin, 1949
Buku Teks
Meehan, Eugene J.
McGraw-Hill, 1966
Buku Teks
Henkin, Louis, author
Martinus Nijhoff, 1995
Buku Teks
Golbett, David
Universty of Taronto Press, Universty of Taronto Press, 1965
Buku Teks
Kraus, Michael, author
University of Oklahoma Press, 1953
Buku Teks