Wilson, Eva, 1925-, author
British Museum, 1998
Buku Referensi
Robertson QC, Geoffrey, author
Penguin Books, 2000
Buku Teks
Weale, Putnam, author
Kelly & Walsh, 1927
Buku Teks
Morgenthau, Hans J., author
Alfred A. Knopf, 1950
Buku Teks
Morgenthau, Hans J., author
Alfred A. Knopf, 1961
Buku Teks