edited by Philip John Davies and Fredric A. Waldstein
Manchester University Press, 1987
Buku Teks SO
Fowler, Robert Booth
Praeger, 1985
Buku Teks SO
Anderson, Charles W., 1934-
Prentice-Hall, 1967
Buku Teks SO
Andry Indrady
F.A. Davis , 2004
Buku Teks
Ebenstein, William
Holt, Rinehart and Winston, 1962
Buku Teks SO