Nguyen , T. T. N.; Le , N. S.; Nguyen , D. T.; Nguyen , V. P.; Tran , D. K.; Vuong, T. T. H.; Nguyen , T. N. Activity of Radioactive Isotopes in the Offshore Seawater at Vicinity Areas of Phu Quy, Phu Quoc and Bach Long Vy Islands. Nucl. Sci. and Tech. 2021, 11, 19-26.