Brzezinski, Zbigniev K.
The grand failure : the birth and death of communism in the twentieth century
Collier Books, 1990
 Buku Teks
Brzezinski, Zbigniev K.
The Grand failure : the birth and death of communism in the twentieth century
Chartes Scribner's, 1989
 Buku Teks
Russel, Fox Hon
Justice in the twenty-first century
Covendish Publishing Limited, 2000
 Buku Teks
Baker, Stanley B.
School counselling for the twenty-first century
Prentince-Hall, 1996
 Buku Teks
Finegan, Edward
Language in the USA: themes for the twenty-first century
Cambridge University Press, 2006
 Buku Teks SO