Determination of the natural radionuclide content and associated radiation hazard in soil samples collected from the Ohorongo cement plant and the town of Otavi, Namibia. ISTJN [Internet]. 2021 May 26 [cited 2026 Oct. 8];14:83-95. Available from: https://journals.unam.edu.na/index.php/ISTJN/article/view/1570