1. D. A.Skoog , F. J.Holler and T. A.Nieman , Principles of Instrumental Analysis , Brooks/Cole, A divison of Thomson Learning Inc., Thomson Asia Pte Ltd , Singapore , 5th edn, 1998 , pp. 1–2
2. Soil Analysis: Modern Instrumental Techniques , ed. K. A. Smith and M. S. Cresser , Marcel Dekker , New York , 3 rd edn, 2004
3. Handbook of practical X-ray fluorescence analysis , ed. B. Beckhoff , B. Kanngieber , N. Langhoff , R. Wedell and H. Wolff , Springer-Verlag , Berlin/Heidelberg , 2006
4. R. E.Van Grieken and A. A.Markowicz , Handbook of X-Ray Spectrometry , Marcel Dekker , New York , 2nd edn, revised and expanded, 2001 , p. 47
5. An overview of quantification methods in energy-dispersive X-ray fluorescence analysis