“Fractional Free Volume Dependence of Neutron-IrradiatedPolystyrene (PS) Measured by Positron Method”.
Iraqi Journal of Science 48, no. 1 (January 14, 2025): 109–112. Accessed August 8, 2025.
https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/14610.