APA (7th ed.) Citation

Koay,C W. (2002). Microsoft visual basic 6.0: Langkah demi langkah. Venton Publishing.

Chicago Style (17th ed.) Citation

Koay,C W. Microsoft Visual Basic 6.0: Langkah Demi Langkah. Selangor: Venton Publishing, 2002.

MLA (9th ed.) Citation

Koay,C W. Microsoft Visual Basic 6.0: Langkah Demi Langkah. Venton Publishing, 2002.

Warning: These citations may not always be 100% accurate.