(1999). Wordlwide business software piracy losses estimated at nearly $11 billion in 1998. Manila Bulletin.
Chicago-viite (17. p.)"Wordlwide Business Software Piracy Losses Estimated at Nearly $11 Billion in 1998." Manila Bulletin 1999.
MLA-viite (9. p.)"Wordlwide Business Software Piracy Losses Estimated at Nearly $11 Billion in 1998." Manila Bulletin, 1999.
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