Nabbungo, Edisa Sarah. The effect of O' level commerce on student's academic achievement in economics in Mpigi district selected secondary schools / Edisa Sara h Nabbungo. - Kampala, 1998. - ix, 36 p. ; 30 cm. Dissertation (B.Educ.) - Makerere University, 1998. Includes bibliographical references (p. 23-25). Subjects--Topical Terms: Economics --Study and teaching --Uganda.---- Dewey Class. No.: 330