APA (7th ed.) Citation

Chua. (2001). A step-by-step guide: Visual basic 6. Federal Publications.

Chicago Style (17th ed.) Citation

Chua. A Step-by-step Guide: Visual Basic 6. Shah Alam: Federal Publications, 2001.

MLA (8th ed.) Citation

Chua. A Step-by-step Guide: Visual Basic 6. Federal Publications, 2001.

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