Barker, D.J.P., author
Churchil Livingstone, 1976
Buku Teks
edited by L.G. Whitby and Walter Lutz
Churchill Livingstone, 1971
Buku Referensi
Chadwick, Barbara L., author
Quintessence Publishing, 2003
Buku Teks
by Christoph Hämmerle ... [et al.]
Quintessence, 2008
Buku Teks
Bres, P.
World Health Organization, 1986
Buku Teks