HUSSAIN, R. Obid; ABBAS, E. Kadum. Measurement of Natural Occurring Radio nuclides (NORMs) in Soil using Gamma- ray Spectrometry. Journal of Kufa-Physics, Kufa, Najaf, IRAQ, v. 2, n. 2, 2010. Disponível em: https://journal.uokufa.edu.iq/index.php/jkp/article/view/7498. Acesso em: 7 aug. 2026.