N. Mekonnen, K., A. A. Ambushe, B. S. Chandravanshi, M. R. Abshiro, A. du Plessis, and R. I. McCrindle. “Assessment of the Concentration of Cr, Mn and Fe in Sediment Using Laser-Induced Breakdown Spectroscopy”. Bulletin of the Chemical Society of Ethiopia 27, no. 1 (December 15, 2012): 1–13. Accessed August 31, 2026. https://www.ajol.info/index.php/bcse/article/view/84069.