1. “Calcium Regulatory Hormones”;Adams,1975
2. Association of Official Agricultural Chemists (1940). “Methods of Analysis,” p. 371. AOAC, Washington, D.C.
3. Association of Official Agricultural Chemists (1960). “Official Methods of Analysis,” 5th ed., pp. 650 and 675. AOAC, Washington, D.C.
4. Association of Official Analytical Chemists (1975). “Official Methods of Analyses,” 12th ed., Chapter 43, p. 885. AOAC, Washington, D.C.
5. COMPETITIVE BINDING ASSAY FOR VITAMIN D AND 25-OH VITAMIN D*