Howard, John A., author
Columbia University Press, 1963
Buku Teks
Dyer, Robert F., author
Prentice-Hall International, 1991
Buku Teks
Cravens, David W., author
Richard D. Irwin, 1982
Buku Teks
Cravens, David W., author
Richard D. Irwin , 1987
Buku Teks
Marcus, Burton H.
Brown, 1979
Buku Teks