Atkinson, Lee
Que Corporation, 1992
Buku Teks SO
Kelly-Bootle, Stan
Indomicros, 1989
Buku Teks SO
Borland International, 1987
Buku Referensi
Borland International, 1988
Buku Referensi
by Borland International Inc.
Borland International, 1988
Buku Teks SO