izlaidumi no John Sansbury

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Cover for John Sansbury · Service Level Manager: Careers in IT service management - BCS Guides to IT Roles (Paperback Book) (2017)

Service Level Manager: Careers i... (2017)

Cover for John Sansbury · IT Service Management: Support for your ITSM Foundation exam - Third edition (Paperback Book) [3 New edition] (2016)

IT Service Management: Support f... (2016)