Determine concentration radon 222Rn in the air inside and outside the buildings at the summer and winter in the province of Baghdad . Journal of Madenat Alelem, [S. l.], v. 2, n. 2, p. 29–38, 2010. Disponível em: https://journal.mauc.edu.iq/index.php/JMAUC/article/view/275. Acesso em: 26 feb. 2026.