Study of the natural radioactivity of selected samples of the soil of Al-Nada district in Najaf. Ibn AL-Haitham Journal For Pure and Applied Sciences, [S. l.], v. 31, n. 3, p. 43–54, 2018. DOI: 10.30526/31.3.2026. Disponível em: https://jih.uobaghdad.edu.iq/index.php/j/article/view/2026.. Acesso em: 6 may. 2024.