Hillier, Timothy, author
Cavendish, 1994
Buku Teks
Nunez, Jorge E., author
Routledge, 2017
Buku Teks
Janis, Mark W., author
Little, Brown , 1993
Buku Teks
Henkin, Louis, author
Martinus Nijhoff, 1995
Buku Teks
Hanqin, Xue, author
Cambridge University Press, 2003
Buku Teks