Cox, Michael J.
Boyd and Faster Pub., 1986
Buku Teks
Longkutoy, John J.
Mutiara Sumber Widya, 1985
Buku Teks
Longkutoy, John J.
Mutiara Sumber Widya, 1987
Buku Teks
Wilde, Ethan
Peachpit Press, 2003
Buku Teks
Kemmeny, John G.
Addison-Wesley, 1985
Buku Teks