Nakimuli, Zapharan. Assessment of the performance of direct dual media (anthracite and s and) filtration system in drinking water treatment using filter colums / Zapharan Nakimuli. - Kampala, 2021. - x, 82 p. : ill., ; photos, graphs, tables ; 35 cm. Unpublished thesis (MSc.CIVIL. ENG.)- Makerere University, 2021 Includes bibliographical references (p.67-71) Subjects--Topical Terms: Water-- Purification-- Sand filtration. Dewey Class. No.: 628.164