1. Bode, H. E. (1966). Method for recovering solids from waste food liquors and alleviating stream pollution. US Patent Office, Pat. No. 3,248,225.
2. Coagulation and flocculation in water and wastewater treatment;Bratby,2006
3. Starch graft copolymers for water treatment;Burr;Die Stärke,1975
4. Caldwell, C. G., Wurzburg, O. B., & Sun, S. (1961). Flocculation of fine particles by starch ethers. US Patent Office, Pat. No. 2,975,124.
5. Substituted starches in amine flotation of iron ore;Chang;Mining Engineering,1954