Radioactivity of Some Soils in the University of Tikrit, Iraq, college of Education for Girls using Solid-State Nuclear Track Detector type CR-39. Iraqi Journal of Science [Internet]. 2019 Sep. 29 [cited 2024 May 2];60(9):2015-21. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/924