Steinberg, Stephen
McGraw-Hill, 1974
Buku Teks
Hirsch, Eric Donald, Jr.
Houghton Miffiln, 2007
Buku Teks SO
edited by Richard Hofstadter and Wilson Smith
University of Chicago Press, 1961
Buku Teks
Johns Hopkins University Press, 1979
Buku Teks SO
Touraine, Alain
McGraw-Hill, 1974
Buku Teks