1. Dean, J. A.; Lange’s Handbook of Chemistry, 5th ed. McGraw-Hill, New York, U.S.A. (1999)
2. Doi, K.; Inorganic Ion Exchangers-expression and Application of Selective Separation Function (in Japanese), NTS Inc., Tokyo, Japan (2010)
3. Hibino, T.; “Synthesis and Applications of Hydrotalcites,” The Clay Science Society of Japan, 45, 102–109 (2006)
4. Hiroi, K.; “The Analysis of Principal Components in Salts, Sea Water, Brine and Bittern (in Japanese),” The Society of Sea Water Science, Japan, 34, 116–120 (1980)
5. Kameda, T., T. Yoshioka, Y. Umetsu and A. Okuwaki; “Application of Hydrotalcite for Water Environmental Presentation and Purification,” The Chemical Times, 195, 10–16 (2005)