Development (2) région (1) lampe (1) électricité (1) Afrique de l'Est (1) Asie (1) Afrique (1) Money (1) Case studies (1) Work (1) South Asia (1) Awards (1) Money (1) Lamps (1) Home (1) Electrification (1) Electricity (1) Case studies (1) Business enterprises (1) Africa, East (1) Awards (1) Number (1) lampe (1)