DEEP, K. .; MITTAL, R. . Calcium Hardness Analysis of Water Samples Using EDXRF Technique . Journal of Nuclear Physics, Material Sciences, Radiation and Applications, [S. l.], v. 2, n. 1, p. 105–113, 2014. DOI: 10.15415/jnp.2014.21008. Disponível em: https://jnp.chitkara.edu.in/index.php/jnp/article/view/167. Acesso em: 5 oct. 2024.