Tefera, Worku, Araya Asfaw, Frank Gilliland, Alemayehu Worku, Mehari Wondimagegn, Abera Kumie, Jonathan Samet, and Kiros Berhane. 2020. “Indoor and Outdoor Air Pollution- Related Health Problem in Ethiopia: Review of Related Literature”. The Ethiopian Journal of Health Development 21 (1). https://ejhd.org/index.php/ejhd/article/view/351.