Hussein, Adil M., Kamal O. Abdullah, Kharman A. Faraj, and Dara F. Hamamin. “Radon Concentration in the Work Atmosphere of Cement Plants in the Sulaymaniyah Area, Iraq”. ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY 6, no. 1 (March 2, 2018): 7-12. Accessed January 29, 2023. https://aro.koyauniversity.org/index.php/aro/article/view/ARO.10329.