Attah, LE, and MB Regasa. “Assessment of Heavy Metals, PH and EC in Effluent Run-Off, River and Adjacent Soil Around a Floriculture Industry in Holeta, Wadera District, Ethiopia”. Ethiopian Journal of Environmental Studies and Management 6, no. 6 (November 8, 2013): 620–629. Accessed August 21, 2026. https://www.ajol.info/index.php/ejesm/article/view/96660.