Comores (Archipel) (1) Ouest (1) Sud (1) Est (1) Centre (1) Sénégal (1) Assaying (1) Correspondence (1) Correspondence (1) Statistics (1) Exhibitions (1) Wealth (1) Spleen (1) Risk (1) Nature (1) International division of labor (1) Epidemics (1) Discoveries in geography (1) Corporations (1) Business enterprises (1) Human geography (1) Statistics (1) Exhibitions (1) Mathematical models (1) Research (1) Analysis (1) Synthesis (1) Rates (1) Population (1) Infections (1)