(2003). Top ten viruses and hoaxes reported to Sophos in August 2003. Manila Bulletin.
Chicago-viite (17. p.)"Top Ten Viruses and Hoaxes Reported to Sophos in August 2003." Manila Bulletin 2003.
MLA-viite (9. p.)"Top Ten Viruses and Hoaxes Reported to Sophos in August 2003." Manila Bulletin, 2003.
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