| cbs.nl | Isi |
| asq.org | ASQ Quality Central |
| ufl.edu | The World-Wide Web Virtual Library: Statistics |
| geocities.com | Quality Management Association of New York |
| bin.co.uk | The Business Improvement Network |
| asqtz.org | American Society for Quality - Tappan Zee Section 309 |
| asqtoronto.org | American Society for Quality - Toronto Section |
| asqlouisville.org | American Society for Quality - Louisville Section 912 |
| asq-0704.org | American Society for Quality - Section 0704 Phoenix , Arizona |
| a-p-s.org | Association of Productivity Specialists |
| cmu.edu | lib.stat.cmu.edu/ |
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