Mervin, David
Ronald Reagan and the American presidency
Longman, 1990
 Buku Teks
Perspectives on the Reagan years
edited by John L. Palmer
Urban Institute Press, 1986
 Buku Teks
Gordon, W. Terrence
Saussure for beginners
Writer and Readers Pubishing, 1996
 Buku Teks
Worth, Thomas
Cobol for beginners
Prentice-Hall of India 1981, 1977
 Buku Teks
Carpenter, Catrine
Beginners french
McGraw-Hill, 2004
 Buku Teks