Kawaguchi, Keizaburo
Center for Southeast Asian Studies Kyoto University, 1969
Buku Teks
Lomax, Louis.E
Random House, 1967
Buku Teks
Brown, Rajeswary Ampalavanar, author
Routledge, 2014
Buku Teks
Bloomfiel, L. M.
The Carswell Company, Limited, 1957
Buku Teks
The National Identity Board
The National Identity Board, 1995
Buku Referensi