Calder,Alan. (2005). IT governance: A manager's guide to data security and BS 7799/ISO17799 (3.). Kongan Page.
शिकागो स्टाइल उद्धरणCalder,Alan. IT Governance: A Manager's Guide to Data Security and BS 7799/ISO17799. 3. London: Kongan Page, 2005.
एमएलए उद्धरणCalder,Alan. IT Governance: A Manager's Guide to Data Security and BS 7799/ISO17799. 3. Kongan Page, 2005.
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