Pérez, G., H. Cartas, A.O. Casanova, and O. Díaz , trans. “Radioactivity Levels and Radiation Hazard in Sands from Cuban Beaches”. Revista Cubana de Física 42, no. 1 (July 15, 2025): 65–66. Accessed August 8, 2025. https://revistacubanadefisica.org/index.php/rcf/article/view/54.