et. al., A. F. M. H. . (2021). An Assessment of Radioactivity Levels of Radionuclides for Surface and Deep Soils Yathrib district, Balad district, Salah al-Din Governorate /Iraq. Turkish Journal of Computer and Mathematics Education (TURCOMAT), 12(12), 4631–4641. https://doi.org/10.17762/turcomat.v12i12.8502