H. Aregawi, B., and A. A. Mengistie. “Removal of Ni(II) from Aqueous Solution Using Leaf, Bark and Seed of <i>Moringa stenopetala</i> Adsorbents”. Bulletin of the Chemical Society of Ethiopia 27, no. 1 (December 15, 2012): 35–47. Accessed August 31, 2026. https://www.ajol.info/index.php/bcse/article/view/84072.