Necessary measures: metric-driven information security risk assessment and decision making. - Wade H. Baker; Loren Paul Rees; Peter S. Tippett (Commun. ACM, 2007)

Computer Ethics. - Peter S. Tippett (Information Security Management Handbook, 6th ed., 2007)

Ethics. - Peter S. Tippett (Encyclopedia of Information Assurance, 2011)