GASSIM, T. M. . The study of ( Columba livia domestica) Pigeon as bioindicator of contamination with zinc, lead and cadmium in Khartoum state. Journal of Faculty of Education, [S. l.], v. 7, 2021. DOI: 10.53332/jfe.v7i.373. Disponível em: http://onlinejournals.uofk.edu/index.php/JFE/article/view/373. Acesso em: 4 apr. 2025.