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Dyfyniad Arddull ChicagoBreon, Rhonda., và Ken Katano. Microsoft Office 97 Executable Content Security Risks and Countermeasuares. USA: National Securuty Agency, 1999.
Dyfyniad MLABreon, Rhonda., và Ken Katano. Microsoft Office 97 Executable Content Security Risks and Countermeasuares. USA: National Securuty Agency, 1999.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.