Folland, Sherman, author
Prentice-Hall, 2001
Buku Teks
Shanson, D.C.
Wright PSG, 1982
Buku Teks
Moffet, Hugh L., author
J B Lippincott, 1980
Buku Teks
National Institute for Clinical Excellence
Radcliffe Medical Press, 2006
Buku Teks
Bernstein, Lewis
Norwalk Appletton century crofts , 1985
Buku Teks