Hoffman, Norman S.
McGraw-Hill, 1977
Buku Teks
Last, John M., 1926-, author
Appleton & Lange, 1998
Buku Teks
Last, John M., 1926-, author
McGraw-Hill, 1997
Buku Teks
edited by Moryteza Honari and Thomas Boleyn
Routledge, 1999
Buku Teks
Meyer, Evelyn E.
World Health Organization, 1975
Buku Teks