Bernstein, M.E. (1960) : Socio-economic foundations of children's personality. New York, Inc. pp. 207.
Chaubey, N.P. (1979) : Achievement Motive Scale. National Psychological Corporation, Agra.
Chaubey, N.P. (1979) : Non-Risk taking Scale. National Psychological Corporation, Agra.
De, B. and Singh, (1977) : Social Deprivation Scale. Psycho-Scientific Centre, Patna-6.
McClelland, C. and Atkinson, Y. (1966) : The achieving Society, Princeton, New York.