Semiyaga, N. Bulya. Risk factors for refusal to take ivermectin during mass treatment in Kyabigambire sub-county Hoima district / N. Bulya Semiyaga. - Kampala: Makerere University , 2003. - xiii, 53 leaves : ill. ; 30 cm. Thesis (Msc), Makerere University, 2003. Include bibliographical references( p. 37-41.) Subjects--Topical Terms: Ivermectin --administration & dosage.------