Chan Stephen; Moore Cewyn
Sage, 2006
Buku Teks
Kegley, Charles William, Jr.
St. Martin's Press, 1995
Buku Teks
Kegley, Charles William, Jr.
St. Martin's Press , 1995
Buku Teks
Griffiths, Martin
[publisher not identified], 1992
Buku Teks
Tomuschat, Christian
Oxford University Press, 2014
Buku Teks