أبوبكر علي يوسف و زيدان محمد حوماني. 2019. “Determination of Mutagenicity Factor of Mutation Induction in (HPRT1) Gene in V79 Cells As a Result of Exposure to Protons and Deuterons”. Journal of Pure & Applied Sciences 18 (1). https://doi.org/10.51984/jopas.v18i1.191.