R.M., RAMADHAN. MEASUREMENT OF RADON CONCENTRATION IN IRAQI AND IMPORTED CEMENT. University of Thi-Qar Journal of Science, University of Thi-Qar, Thi-Qar, Iraq, v. 3, n. 2, p. 210–215, 2019. Disponível em: http://www.jsci.utq.edu.iq/index.php/main/article/view/431.. Acesso em: 12 may. 2025.