Saunders, Stephanie, author
Churchill Livingstone/Elsevier, 2012
Buku Teks
Loretz, Lorraine, author
Elsevier, 2005
Buku Teks
Loretz, Lorraine, author
Elsevier Mosby, 2005
Multimedia
United Nations, 2004
Buku Teks
King, Maurice H. (Maurice Henry), author
Oxford University Press, 1978
Buku Teks