Aitken, P. (1999). Sam`s teach yourself internet programming with visual basic 6 in 21 days. Techmedia.
Chicago-viite (17. p.)Aitken, Peter. Sam`s Teach Yourself Internet Programming with Visual Basic 6 in 21 Days. New Delhi: Techmedia, 1999.
MLA-viite (9. p.)Aitken, Peter. Sam`s Teach Yourself Internet Programming with Visual Basic 6 in 21 Days. Techmedia, 1999.
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