American democracy : in world perspective
by William Ebenstein [and others]
Harper & Row, Publishers, 1970
 Buku Teks SO
Chapman, Robert L.
A new dictionary of American slang
London Pan Books 1988
 Buku Referensi
The new American poetry : 1945-1960
edited by Donald M. Allen
Grove Press, 1960
 Buku Teks SO
Graber, Mark A.
A new introduction to American constitutionalism
Oxford University Press, 2015
 Buku Teks
Solomon, Paul
Financial accounting : a new perspective
McGraw-Hill Irwin, 2004
 Buku Teks