SHIMBOYO, S. A.; OYEDELE, J. Determination of natural radioactivity in soils of Henties Bay, Namibia. International Science and Technology Journal of Namibia, [S. l.], p. 104–110, 2015. Disponível em: https://journals.unam.edu.na/index.php/ISTJN/article/view/1177. Acesso em: 3 may. 2024.