Kottke, Frederic J.
W.B. Saunders Company, 1990
Buku Referensi
Wong, Donna L., 1948-
Mosby , 1986
Buku Teks
Murray Longmore [and others]
Oxford University press, 2014
Buku Teks
Mathur, Pramod Bansi
Jaypee Brothers medical publisher, 2008
Buku Teks
Barash, Paul G.
New York : Lippincott, 1997,
Buku Referensi