Redfield, Robert, author
The University of Chicago Press, 1963
Buku Teks
Weber, Max, 1864-1920, author
University of California press, 1978
Buku Teks
Vercruijsse, Emile
Institute of Social Studies , 1988
Buku Teks
Scott, James C., author
Yale University Press, 1976
Buku Teks
Scott, James C., author
Yale University Press, 1977
Buku Teks