Gebretsadik, Heron Gezahegn. “Severity of Dental Fluorosis Among 12-15 Years Old School Children in Zeway, Oromia Region, Ethiopia”. Orapuh Journal 2, no. 3 (November 17, 2021): e824. Accessed September 27, 2025. https://www.orapuh.org/ojs/index.php/orapj/article/view/57.