1. IAEA, Measurement of radionuclides in food and the environment: a guidebook, Technical Reports No. 295, IAEA, Vienna, 1989.
2. Handbook of Radioactivity Analysis;L׳Annunziata,2012
3. Practical and Gamma Ray Spectrometry;Gilmore,2008
4. S.J. Parry, Encyclopedia of Analytical Science, Second Edition, 2005, pp. 1–10.