Vincent, Michael
Philadelphia John Benjamin Publishing, 1992
Buku Teks
edited by Arthur Waldhorn, Olga S. Weber, Arthur Zeiger
R.R. Bowker, 1990
Buku Teks
Whitworth, Michael H.
Wiley-Blackwell, 2010
Buku Teks
Martin Montgomery ... [and others]
Routledge , 2007
Buku Teks
Hatt, Frank
Clive Bingley, 1986
Buku Teks