New York University Press, 1951
Buku Teks
Maddex, Robert L.
Routledge, 1996
Buku Teks
Hawgood, John A.
Macmillan and co., limited, 1939
Buku Teks
edited by Douglas E. Edlin
Cambridge University Press, 2007
Buku Teks
Bakshi, P.M.
Universal Law Publishing Co., 2009
Buku Teks