1. Challenger Learning Center of Alaska - pamphlets, floor plans, site plan, and contribution lists (from Bill Popp - project coordinator).
2. Interview with Bill Popp (project coordinator) on February 17, 1999, in Kenai, Alaska.
3. Challenger Learning Center of Alaska- Website: <http://www.akchallenger.org> (February 1999).
4. Backgrounds, bullets, dividers, and buttons from "Web Explosion 20,000 Images" web page graphics CD. Nova Development Corp. Copyright 1996.