Spengler, Joseph J. (Joseph John), 1902-1991
Prentice-Hall, 1974
Buku Teks
edited by George Dalton
New York, 1971
Buku Teks
Vallier, Ivan
Prentice-Hall, 1970
Buku Teks
Merton, Robert K.
Free Press, 1957
Buku Teks
Merton, Robert K.
Free Press, 1968
Buku Teks