AN TRUNG NGUYEN; THI CAM HA NGUYEN; TIEN THINH LAI; HOANG GIANG NGUYEN; HA VU; THANH LONG NGUYEN. Developing a database for Cs-137 radioactivity concentration and assessing residual levels in surface soils of Quang Ninh, Hai Phong, and Lang Son provinces. Vietnam Journal of Science, Technology and Engineering, [S. l.], v. 63, n. 3, p. 92-96, 2021. DOI: 10.31276/VJSTE.63(3).92-96. Disponivel em: https://vietnamscience.vjst.vn/index.php/vjste/article/view/73. Acesso em: 15 jul. 2026.