Gelles, Richard J.
McGraw-Hill College , 1999
Buku Teks
Bell, Earl H.
Harper & Row, 1965
Buku Teks
Currier, Glenn
Harcourt, college Pub., 1997
Buku Teks
Toennies, Ferdinand
The University of Chicago Press, 1971
Buku Teks
Murdock, George Peter
The Free Press, 1965
Buku Teks