McGovern, Edmond
Globefield Press, 1982
Buku Teks
Palmeter, David
Cambridge University Press, 2004
Buku Teks
Verbit, Gilbert P.
Columbia University Press, 1969
Buku Teks
Cambridge University Press, 2010
Buku Teks
Bossche, Peter van den
Cambridge University Press, 2013
Buku Teks