Harper, Harold A.
Lange Medical Publications, 1977
Buku Teks
Pious, Richard M
Basic Books, 1944
Buku Teks
editor, James R. Newman
Harper & Row, 1963
Buku Referensi
Little, Brown And Company, 1980
Buku Teks
Boyd, Harper W., Jr., author
Richard D. Irwin, 1977
Buku Teks