Furaha M. Chuma, Kelvin M. Mtei, and Karoli N. Njau. “Assessment of Heavy Metals in Treated Wastewater Used for the Irrigation of Vegetable Plants in Arusha City”. International Journal of Research in Chemistry and Environment (IJRCE) 5, no. 1 (December 31, 2014): 54–60. Accessed November 6, 2024. https://ijrce.org/index.php/ijrce/article/view/304.