World Health Organization, 1996
Buku Teks
Griffin, Don, author
Jones & Bartlett, 2009
Buku Teks
edited by Richard H. Egdahl
Springer-Verlag, 1977
Buku Teks
Banta, H. David, author
Oxford University Press, 1993
Buku Teks
Blancett, Suzanne Smith, author
Aspen, 1996
Buku Teks