Wossen Tafere, Firehiwot Abera, Yosef Beyene, and Tesfaye Legesse. “Microbiological Quality and Safety of Bottled Water Brands Sold in Ethiopia”. The Ethiopian Journal of Health Development, vol. 28, no. 3, Feb. 2016, https://ejhd.org/index.php/ejhd/article/view/3354.