Dumont, Louis
Mouton, 1970
Buku Teks
edited by Amal Kumar Mukhopadhyay
Council for Political Studies, 1974
Buku Teks
Frederic Grare, Amitabh Mattoo, editor
Manohar, 2001
Buku Teks
Parkin, Raleigh
Green & Company, Canada, 1945
Buku Teks
Hardgrave, Robert L.
Harcourt, Brace, 1970
Buku Teks