"X-38". Federation of American Scientists. Archived from the original on 6 اكتبر 2012. Retrieved 2006-09-20. {{cite web}}: Check date values in: |archive-date= (help)
web.archive.org
"X-38". Federation of American Scientists. Archived from the original on 6 اكتبر 2012. Retrieved 2006-09-20. {{cite web}}: Check date values in: |archive-date= (help)