MAHUGIJA, J.; KASENYA, Z.; KILULYA, K. Variations of Concentrations of Lead, Zinc, Iron, Copper and Cadmium in Urine of Primary School Pupils in Relation to Age, Sex and Academic Performance. Tanzania Journal of Science, [S. l.], v. 46, n. 2, p. 190–204, 2020. Disponível em: http://tjs.udsm.ac.tz/index.php/tjs/article/view/66. Acesso em: 25 jul. 2024.