Gassim TM. The study of ( Columba livia domestica) Pigeon as bioindicator of contamination with zinc, lead and cadmium in Khartoum state. JFE [Internet]. 2021 Oct. 5 [cited 2025 Apr. 4];7. Available from: http://onlinejournals.uofk.edu/index.php/JFE/article/view/373