Dhingra, D CSingh, M VGupta, SAnand, N K1977-01-012009-05-271977-01-012009-05-271977-01-01Dhingra DC, Singh MV, Gupta S, Anand NK. Impact of social class on intelligence. Indian Pediatrics. 1977 Jan; 14(1): 35-9http://imsear.searo.who.int/handle/123456789/9114engChildChild, PreschoolHumansIndiaIntelligenceIntelligence TestsMaleSocial ClassImpact of social class on intelligence.Journal Article