Yaro A, Abdulrashid L, Sani Y. Estimation of Lead, Cadmium and Copper in Urban Irrigation Sites in Katsina Urban Area, Northern Nigeria. IJRANS [Internet]. 2017 Jun. 30 [cited 2026 Aug. 1];3(6):32-43. Available from: https://www.ijrmsjournal.com/index.php/ans/article/view/83