Weiskamp, Keith, author
John Wiley & Sons, 1989
Buku Teks
Ezzell, Ben, author
Addison-Wesley, 1990
Buku Teks
Schildt, Herbert, author
McGraw-Hill, 1988
Buku Teks
Angell, Ian O., author
Macmillan, 1991
Buku Teks
Tyler, Andrew, author
SIGMA Press, 1994
Buku Referensi