Abojassim, Ali A., Qusay B. Muhamad, Noor Ali Jafer, and Hassan A. Mohammed. 2025. “Natural Radioactivity Levels in Healthy and Groundwater Samples of Al-Manathera Region of Al-Najaf, Iraq”. Jordan Journal of Physics 15 (4). https://jjp.yu.edu.jo/index.php/jjp/article/view/594.