World Health OrganizationOnchocerciasis Control Program in West Africa2022-09-262022-09-261989-12-31OCP/CSA/41https://iris.who.int/handle/10665/3631628 p.enOnchocerciasisProgram EvaluationPartnership PracticeCommittee of sponsoring agencies: report of the forty-first session Paris, 17 and 19 October 1989Technical Documents