Perry, Michael J., author
Oxford University Press, 1997
Buku Teks
Perry, Michael J., author
Oxford University Press , 1990
Buku Teks
Zimmerman, Michael J.
Cambridge University Press , 1996
Buku Teks
Perry, J. Harvey
University of Toronto Press, 1953
Buku Teks
Hogan, Michael
Penguin Books, 1987
Buku Teks