United Nations. Economic Commission for Africa.; United Nations. Economic Commission for Africa.; United Nations. Economic Commission for Africa. Subregional Office for Southern Africa(1999-12)
United Nations. Economic Commission for Africa. Subregional Office for West Africa; United Nations. Economic Commission for Africa. Subregional Office for Southern Africa; United Nations. Economic Commission for Africa.(1998)
United Nations. Economic Commission for Africa. Subregional Office for Southern Africa; United Nations. Economic Commission for Africa. Subregional Office for Southern Africa(2000)
United Nations. Economic and Social Council; United Nations. Economic Commission for Africa.; United Nations. Economic Commission for Africa. Subregional Office for Southern Africa(2010-03)