source:Source: https://www.afdb.org/fileadmin/uploads/afdb/Documents/Project-and-Operations/Multinational_-_Projet_pilote_relatif_%C3%A1_la_r%C3%A9cup%C3%A9ration_de_l%E2%80%99eau_dans_la_r%C3%A9gion_de_l%E2%80%99IGAD_-_Rapports_d%E2%80%99%C3%A9valuation.pdf
