Benton, Richard G., author
Van Nostrand Reinhold, 1978
Buku Teks
Kubler-Ross, Elisabeth, author
Macmillan, 1981
Buku Teks
Henderson, Virginia, author
Macmillan, 1978
Buku Teks
Birpuri, Shakuntla Sharma, author
Jaypee Brothers Medical pub., 2012
Buku Teks
National Institute for Clinical Excellence
Radcliffe Medical Press, 2006
Buku Teks