Murdock, George Peter
Free Press, 1965
Buku Teks SO
Mannheim, Karl, 1893-1947
Routledge & Kegan Paul, 1956
Buku Teks SO
Merrill, Francis E. (Francis Ellsworth), 1904-1969
Prentice-Hall, 1965
Buku Teks SO
Landis, Paul H.
Ginn and Company, 1961
Buku Teks SO
Glezerman, Grigory
Foreign Languages Publishing House, [date of publication not identified]
Buku Teks SO