World Health Organization, [date of publication not identified]
Buku Teks
Barreneche, Raul A.
Rizzoli, 2003
Buku Teks
Reschke, Cynthia
Te Neues, 2003
Buku Teks
Trulove, James Grayson
HarperCollins, 2001
Buku Referensi
Tyring, Stephen K.
Elsevier, 2005, 2005
Buku Teks