Gaya APA
Visual basic 6.0 4th Edition. (1998).
:
Microsoft Corporation.
Gaya Chicago
Visual basic 6.0 4th Edition.
.
:
Microsoft Corporation,
1998.
CD/DVD-ROM.
Gaya MLA
Visual basic 6.0 4th Edition.
.
:
Microsoft Corporation,
1998.
CD/DVD-ROM.
Gaya Turabian
Visual basic 6.0 4th Edition.
:
Microsoft Corporation,
1998.
CD/DVD-ROM.