Clark, John J.
Prentice-Hall, 1989
Buku Teks
Gopalan, C., author
World Health Organization, 1994
Buku Teks
Gopalan, C., author
World Health Organization , 1994
Buku Teks
Brock, Thomas D., author
Springer-Verlag, 1985
Buku Teks
Columbia University Press, 1968
Buku Teks