Trulove, James, author
McGraw-Hill, 2000
Buku Teks SO
Miller, Mark A., author
M&T Books, 1991
Buku Referensi
Hein, Mathias, author
International Thomson Computer Press, 1997
Buku Teks
Choi, Won-Oh, author
Global Oriental, 2008
Buku Teks
Farrell, Jane, author
J.B. Lippincott, 1986
Buku Teks