Bohlman, K. J.
Dickson Price Publishers, 1987
Buku Teks
Smith, Sydney F., author
Oxford University Press, 1978
Buku Teks
Walker, Philip, author
Butterworth, 1988
Buku Teks
Halderman, James D., author
Prentice-Hall, 1994
Buku Teks
Bielawski, Larry
Prentice-Hall, 1997
Buku Teks