Teklemariam, Teklemariam Tessema, Milkesa Gebeyehu, and Abreham Alemu. 2023. “Naturally Occurring Radioactive Materials Measurement of Mineral Soil in South-East of Ethiopia”. Ethiopian Journal of Education and Sciences 18 (1), 57-65. https://journals.ju.edu.et/index.php/ejes/article/view/4582.