editor, Peter Pagnamenta
Third Millennium Publishing, 2008
Buku Referensi
Winter, C.F. (Carel Frederik), author
Geofferey Cumberlege, 1948
Buku Teks
Steegmuller, Francis, 1906-1994, author
Vintage Books, 1957
Buku Teks
by Barbara Capitman Baer [and others]
Hennessey & Ingalls, 2002
Buku Teks
US. Department of State, 2005
Multimedia