B. RAJAMANNAN, G. V. R. G. Measurement of Natural Radioactivity in Porcelain Stoneware Tiles. Recent Research in Science and Technology, [S. l.], v. 1, n. 1, 2009. Disponível em: https://www.updatepublishing.com/journal/index.php/rrst/article/view/292. Acesso em: 14 oct. 2025.