1.
Lawal A, Mohammed S, Damisa D. Assessment of levels of copper, cadmium and lead in secretion of mammary gland of cows grazed on open fields. SWJ [Internet]. 2010 Feb. 23 [cited 2026 Oct. 17];1(1). Available from: https://www.ajol.info/index.php/swj/article/view/51689