1. Production of Starch from Water Caltrop
2. Pharmacopoeia of India,1956
3. J. A. Radley, “Starch and Its Derivatives,” 4th ed., Chapman and Hall Ltd., London, England, p. 171.
4. The Preparation Of Compressed Tablets: Part III.—A Study of the Value of Potato Starch and Alginic Acid as Disintegrating Agents
5. The United States Pharmacopeia,1955