A. J. Mohammed, R. M. Ramadan, and R. M. Shaban, “Calculate the Attenuation of X-ray radiation for low density polyethylene composites with oyster shells powder extracted from the Caspian Sea in Iran”, JNSLAS, vol. 3, no. 1, pp. 49–38, Mar. 2019, doi: 10.26389/AJSRP.J271118.