Leo C. Brown [and others] of the Institute of Social Order, St. Louis University
ill Loyola University Press , 1954
Buku Teks SO
Prentice-Hall, 1970
Buku Teks SO
Labovitz, Sanford
McGraw-Hill, 1971.
Buku Teks SO
Institute of Social Science, University of Tokyo,
Majalah, Jurnal, Buletin
[T.t.] [t.p.] 1975
Buku Teks