Determination the Natural Radioactivity Levels at Selected Regions in Al-Najaf Governorate. Al-Nahrain Journal of Science, [S. l.], v. 24, n. 2, p. 33–40, 2021. Disponível em: https://anjs.edu.iq/index.php/anjs/article/view/2328. Acesso em: 15 apr. 2025.