Dr. Michael Colgan. "Optimum Sports Nutrition". 1993.
J.D.B. Featherstone, Carol Shields. "A Study of Fluoride Intake in New York State Residents". New York State Fluoride Analysis Contract - report date 12/1/1988
RD Jackson, EJ Brizendine, SA Kelly, R Hinesley, GK Stookey, AJ Dunipace. "The fluoride content of foods and beverages from negligibly and optimally fluoridated communities.". 2002 Community Dental Oral Epidemiology 30 5 Pg. 382 - 391
Nutrient Data Laboratory, ARS, USDA. "National Food and Nutrient Analysis Program Wave 3a". 2000 Beltsville MD