Burke, Anthony, author
Cambridge University Press, 2008
eBooks
Sajoo, Amyn B.
Institut of Southeast Asian Studies, 1994
Buku Teks
Banton Michael, author
Tavistock Publications, 1969
Buku Teks
Rex, John
Oxford University Press, 1979
Buku Teks
Matthews, Basil
Edinburgh House Press, 1927
Buku Teks