Ammar A. Battawy, Ghassan Ezzulddin Arif, Shadia Majeed Noori, Nada F. Tawfiq, Mohamad Suhaimi Jaafar and Iskandar Shahrim Mustafa 2023. Mathematical Modeling of the Calculation of Uranium Concentrations in the Urine Samples of the Factories Workers due to the Number of Working Years. Tikrit Journal of Pure Science. 21, 6 (Feb. 2023), 147–153. DOI:https://doi.org/10.25130/tjps.v21i6.1093.