Frazer, James George, Sir, 1854-1941, author
Macmillan, 1955
Buku Teks
Benton, Richard G., author
Van Nostrand Reinhold, 1978
Buku Teks
Kubler-Ross, Elisabeth, author
Macmillan, 1981
Buku Teks
edited by George E. Dickinson and Michael R. Leming
McGraw-Hill, 2007
Buku Teks
Stead, Christina, author
Penguin Books, 1989
Buku Teks