Deutsch, Karl Wolfgang, 1912-1992
Houghton Mifflin, 1970
Buku Teks
Thomson Wadsworth, 2003
Multimedia
edited by Roy C. Macridis, Bernard E. Brown
Dorsey Press, 1968
Buku Teks
Magstadt, Thomas M.
Wadsworth-Cengage learning, 2009
Buku Teks
Kothari, Rajni
Little, Brown, 1970
Buku Teks