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- [2] NDT operator certification Part 11. After certification Insight: Non-Destructive Testing and Condition Monitoring, 2002, 44 (11): : 707 - 708
- [7] NDT operator certification: Part 12. Overview and pull-out of all articles plus a proposed company written practice outline Insight: Non-Destructive Testing and Condition Monitoring, 2002, 44 (12): : 766 - 778