monde (1) pauvreté (1) lumière (1) règlement (1) abords (agglomération) (1) Economic conditions (1) Development (1) Children (1) Communication (1) Socioeconomic status (1) Social status (1) Social interaction (1) Poverty (1) Poor (1) Light (1) Hypothesis (1) Functions (1) Culture (1) Communication (1) Children (1) Joint attention (1) Regulation (1) Social conditions (1) Behavior (1) ethnie (1)