Samaila A, Bello S, Iliyasu SR, Sani M. THE BACKGROUND CONCENTRATION OF SOME HEAVY METALS AT NYSC ORIENTATION CAMP LAYOUT, KATSINA. FJS [Internet]. 2022 Aug. 23 [cited 2025 Oct. 29];6(4):150-5. Available from: http://www.fjsadmin.fudutsinma.edu.ng/index.php/fjs/article/view/1051