- Africa--Commerce (4)
- Africa--Commerce--History (2)
- Africa--Economic integration (2)
- Sudan (Region)--History (2)
- Africa--Commerce--Encyclopedias (1)
- Africa--Commerce--Europe (1)
- Africa--Commerce--Europe--History (1)
- Africa--Commerce--India (1)
- Africa--Commerce--Mathematical models (1)
- Africa--Commerce--Portugal--History--Sources (1)
- Africa--Economic conditions (1)
- Africa--Economic conditions--1960- (1)
- Africa--Foreign relations--America (1)
- Africa--Foreign relations--Europe (1)
- Africa--Foreign relations--India (1)
- Africa--Social conditions--1960- (1)
- African cooperation (1)
- Agriculture and state--Africa, Sub-Saharan (1)
- Economic development projects--Africa (1)
- Egypt--Commerce--Encyclopedias (1)
- Europe--Commerce--Africa (1)
- India--Commerce--Africa (1)
- India--Commerce--Encyclopedias (1)
- India--Foreign relations--Africa (1)
- Portugal--Commerce--Africa--History--Sources (1)
- Regionalism--Africa (1)
- Slave-trade--Africa (1)
- Wine industry--Portugal--History--Sources (1)