Qafleshi M, Misini M, Kryeziu D, Aliko L. The characterization of naturally occurring radionuclides in concrete incorporating fly ash as partial cement replacement. Braz. J. Rad. Sci. [Internet]. 2018 Jan. 28 [cited 2024 Oct. 6];6(1). Available from: https://bjrs.org.br/revista_33014/index.php/REVISTA/article/view/193