1.- Barbara A. Chernow and George Vallasi, ed. The Columbia Encyclopedia. Fifth Edition. New York : Columbia University Press, 1993.

2.- Dr. Dan Lago, ed. Turfs University Diet & Nutrition Letter. Pennsylvania : Penn State College of Agricultural Sciences, January 4, 1996.

3.- Dr. Dan Lago, ed. Food & Nutrition Issues. Pennsylvania : Penn State College of Agricultural Sciences, August 22, 1995.

4.- Microsoft Encarta 96’ Encyclopedia. New York : Microsoft 1996.

5.- "Forever Young". Time Magazine. (June 1996).

6.- "The Frontiers of Medicine". Time Magazine. Special Edition. (Fall 1996).

7.- Rowett Research Institute, ed. The Role of Copper in Aging. (1996) http://www.copper.org/environ/uk/

8.- Patricia Long, ed. The Vitamin and Mineral Guide. (1996) http://pathfinder.com/@@2qqOXgc6FSwXqSs/thrive/vitamin.chart.html

9.- Claudia Wallis, ed. How to Live to be 120. (1996) http://pathfinder.com/@@2qqOXgc6FSwXqSs/…e/domestic/1995/950306/950306.health.html

10.- Christine Gorman, ed. Lost Fountain of Youth. (1996) http://pathfinder.com/@@2qqOXgc6FSwXqSs/…magazine/domestic/1996/960205/health.html

11.- Christine Gorman, ed. Can This Pill Really Make You Younger?. http://pathfinder.com/@@2qqOXgc6FSwXqSs/…gazine/domestic/1996/960923/hormones.html

12.- Antioxidant Cookbook. (1996) http://www.nwgraphics.com/just_right/