The London Hospital / UDO, 1972
Buku Teks
Merrifield, Ralph
The Pitman Pres , 1983
Buku Teks
Saunders, Ann, author
Phaidon, 1984
Buku Referensi
King, Anthony D., author
Routledge, 2015
Buku Teks
London, Kurt
D.van Nostrand Company,Inc., 1950
Buku Teks