ABDULAZEEZ, N.; OGBANJE, J. L.; ZAKARI, M. S. Evaluation of Annual Effective Dose of Radon-222 Concentrations in Ground Water from Kotorkoshi and Its Rocky Environs, Zamfara State, Nigeria. Direct Research Journal of Engineering and Information Technology, [S. l.], v. 13, n. 1, p. 38–43, 2025. Disponível em: https://journals.directresearchpublisher.org/index.php/drjeit/article/view/309. Acesso em: 31 may. 2026.