Shirley Lacy
Achieving ISO/IEC 20000
Capacity management
Finance for service managers
Integrated service management
Manager's Guide to Service Management
Managing end-to-end service
Passing your ITIL® intermediate examsAchieving Iso/Iec 20000
Configuration management
Enabling Change
Passing Your ITIL Intermediate Exams [PDF]The Differences Between Bs 15000 and Iso/Iec 20000