Gaya APA
Programming Visual Basic. (2002).
Amerika:
[s.n.].
Gaya Chicago
Programming Visual Basic.
1.
Amerika:
[s.n.],
2002.
Text.
Gaya MLA
Programming Visual Basic.
1.
Amerika:
[s.n.],
2002.
Text.
Gaya Turabian
Programming Visual Basic.
Amerika:
[s.n.],
2002.
Print.