Verstappen, H. Th.
Wolters-Noordhoff , 1973
Buku Teks
Crawfurd, John, author
Oxford University Press, 1971
Buku Referensi
New York : The Far Eastern Assocation, Inc
Majalah, Jurnal, Buletin
Kuiter, Rudie H., author
Gramedia, 1992
Buku Referensi
Stow, Randolph, 1935-2010, author
Pan Books, 1982
Buku Teks