alimentation en eau (1) gestion de l'eau (1) besoin en eau (1) spectacle (1) prix (1) politique (1) papier (1) modélisation (1) modèle (1) affectation (1) Afrique (1) Environmental aspects (1) Instruments (1) Nineteen nineties (1) Work (1) Water use (1) Water (1) South Africa (1) Scarcity (1) Weight loss (1) Process (Law) (1) Political science (1) Paper (1) Models and modelmaking (1) Modeling (1) Functions (1) Example (1) Evidence (1) Environmental aspects (1) Water efficiency (1)