Fufa Shiferra D, Biyana Regasa M. Selected toxic heavy metals in spring and river waters and their health implications: The case of Nonno Benja District, Ethiopia. STAR [Internet]. 2026 Sep. 30 [cited 2026 Oct. 3];15(3):42-55. Available from: https://journals.wgu.edu.et/index.php/star/article/view/2169