Lyon, Peter
Oxford University Press , 1969
Buku Teks
edited by David Koh Wee Hock
Institute of Southeast Asian Studies, 2007
Buku Teks
Coedes, George
Univesity of California Press, 1969
Buku Teks
London : IP Publishing Ltd
Majalah, Jurnal, Buletin
Hall, D.G.E.
Macmillan, 1970
Buku Teks