Lemes IS da S, Fernandes MAR. Quantitative analysis of the natural ionizing radiation level in the city of Botucatu. Braz. J. Rad. Sci. [Internet]. 2021 Apr. 30 [cited 2024 Nov. 9];9(1A). Available from: https://bjrs.org.br/revista_33014/index.php/REVISTA/article/view/1269