Natural Radioactivity Concentration and Estimation of Radiation Exposure in Environmental Soil Samples from Al-Sader City/Iraq. International Journal of Current Engineering and Technology, [S. l.], v. 4, n. 4, p. 2902–2906, 2014. Disponível em: https://ijcet.evegenis.org/index.php/ijcet/article/view/1166. Acesso em: 12 apr. 2026.