Hutton, J.H.
Cambridge University Press , 1946
Buku Teks
Beteille, Andre
University of California Press, 1971
Buku Teks
edited by Edmund Ronald Leach
Cambridge University Press, 1969
Buku Teks
Cartairs, G. Morris, author
The Hogarth Press, 1970
Buku Teks
Sellery, G. C.
Madison: University of Wisconsin Press, 1950
Buku Teks