F.X. Sutiono Gunadi, author
Elex Media Komputindo, 1991
Buku Teks
Jamsa, Kris, author
Osborne McGraw-Hill , 1992
Buku Teks
Dettmana, Terry
Que Corporations, 1993
Buku Referensi
Weinstock, George D., [et.al]
Prentice-Hall, 1971
Buku Teks
Smith, Bud, author
Dinastindo, 1993
Buku Teks