Taylor, Carl E., author
The John Hopkins University Press , 1968
Buku Teks
Hall, Thomas L.
The John Hopkins University Press , 1969
Buku Teks
Baker, Timothy D., author
The John Hopkins University Press , 1967
Buku Teks
Flahault, D.
World Health Organization, 1988
Buku Teks
World Health Organization, 1980
Buku Teks