Encyclopaedia Britannica Inc., 2002
Buku Referensi
edited by Gene Andrew Jarrett
Wiley Balckwell, 2014
Buku Teks
Florida, Nancy K., author
Southeast Asia Program, 2000
Buku Teks
Gale Research, 1991
Buku Referensi
Universiteitsbibliotheek (Leyde, Pays-Bas)
Leiden University Library, 2007
Buku Teks