Last, John M., 1926-
Appleton & Lange, 1998
Buku Teks
Last, John M., 1926-
McGraw-Hill, 1997
Buku Teks
edited by Moryteza Honari and Thomas Boleyn
Routledge, 1999
Buku Teks SO
Meyer, Evelyn E.
World Health Organization, 1975
Buku Teks SO
edited by Edwin D. Kilbourne, Wilson G. Smillie
MacMillan company, 1969
Buku Teks SO