Stevens, Christopher
St. Martin's Press, 1979
Buku Teks
International Legal Center, 1975
Buku Teks
Graham-Brown, Sarah
Longman, 1993
Buku Teks
Beeby, C. E.
Harvard University Press, 1966
Buku Teks
edited by Frances Stewart, Ruhi Saith, Barbara Harriss-White
Palgrave Macmillan, 2007
Buku Teks