Russel Sage Foundation, 2000
Buku Teks
Bankston, Carl L. (Carl Leon), 1952- author
Polity Press, 2014
Buku Teks
edited by John Lack and Jacqueline Templeton
The University of Melbourne, 1988
Buku Teks
edited by Robert W. Tucker, Charles B. Keely and Linda Wrigley
Westview Press, 1992
Buku Teks
Hertz, Frederick
Routledge & Kegan Paul Ltd., 1957
Buku Teks