Lastrucci, Carlo L.
Schenkman, 1964
Buku Teks
Ruckdeschel, F.R., author
McGraw-Hill, 1981
Buku Teks
Berelson, Bernard, author
Harcourt Brece & World, 1964
Buku Teks
edited by Ian Brownlie, Guy S. Goodwin-Gill
Clarendon Press, 1971
Buku Teks
Williams, P.L., author
Pitman Medical, 1973
Buku Teks