Calder, A. (2005). Nine steps to success: An ISO 27001 implementation overview. IT Governance Pub.
Chicago Style (17. basım) AtıfCalder, Alan. Nine Steps to Success: An ISO 27001 Implementation Overview. United Kingdom: IT Governance Pub, 2005.
MLA (9th ed.) AtıfCalder, Alan. Nine Steps to Success: An ISO 27001 Implementation Overview. IT Governance Pub, 2005.
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