edited by William Line and Margery R. King
University of Toronto Press, 1956
Buku Teks
World Health Organization (WHO)
World Health Organization, 2006
Buku Teks
Pan American Health Organization
PAHO, 1992
Buku Teks
edited by Harriet H. Werley
Springer, 1976
Buku Teks
American Elsevier, 1973
Buku Teks