Bell, David A., 1930-
Reston Publishing, 1981
Buku Teks
Floyd, Thomas L.
Prentice-Hall, 1998
Buku Teks
Nilsson, James William
Addison-Wesley, 1986
Buku Teks
Nilsson, James William
Addison-Wesley, 1986
Buku Teks
Morris, Noel Malcolm, 1929-
Macmillan, 1991
Buku Teks