Radioactivity Levels and Radiation Hazard in Sands from Cuban Beaches. Revista Cubana de Física, UTC, v. 42, n. 1, p. 65–66, 2025. Disponível em: https://www.revistacubanadefisica.org/index.php/rcf/article/view/54. Acesso em: 19 jul. 2025.