Sơn, Phạm Ngọc, et al. “CALCULATION OF CORRECTION FACTORS FOR EPITHERMAL NEUTRON SELF-SHIELDING IN Au-197”. Dalat University Journal of Science, vol. 8, no. 3, Aug. 2018, pp. 37-48, https://doi.org/10.37569/DalatUniversity.8.3.331(2018).