Chicago : encyclopaedia Britanica Inc, 2000,
Buku Referensi
Chicago : encyclopaedia Britanica Inc, 1999,
Buku Referensi
Elsiver, 2005,
Buku Referensi
Stockman, Oski
Mosby Year Book, 1991
Buku Teks
editor-in-chief, Marjorie A. Bowman ; editor, Barbara S. Apgar ... [and others]
Elsevier Mosby, 2005
Buku Referensi