Source: https://www.afdb.org/fileadmin/uploads/afdb/Documents/Project-and-Operations/D%C3%A9veloppement_et_financement__des_cha%C3%AEnes_de_valeur_agricoles_pour_l_am%C3%A9lioration_de_la_comp%C3%A9titivit%C3%A9__des_exportations.pdf