technologie (1) bien-être social (1) recherche (1) plantation (d'arbres) (1) nouvelle technologie (1) innovation (1) céréale (1) amende (1) attribut (1) ordre (1) Development (1) Construction (1) Work (1) Wealth (1) Technology (1) Sowing (1) Social service (1) Social problems (1) Social groups (1) Science--Methodology (1) Research (1) Public welfare (1) Process (Law) (1) Partnership (1) Order (1) Manufacturing processes (1) Machinery (1) Hypothesis (1) Humanitarianism (1) Grain (1)