Gaya APA
Halvorson, M. (2000).
Microsoft Visual Basic 6.0 Professional Step by Step (Cet.1).
Jakarta:
Elex Media Komputindo.
Gaya MLA
Halvorson, Michael.
"Microsoft Visual Basic 6.0 Professional Step by Step".
Cet.1
Jakarta:
Elex Media Komputindo,
2000.
Text.