Paula F. Levin

Cultural Sensitivity in the Design and Evaluation of Early Intervention Programmes

P. Levin, R. Heath, Paula F. Levin, 1991 .

Effect of feeling good on helping: cookies and kindness.

A. Isen, P. Levin, Alice M. Isen, 1972, Journal of personality and social psychology.

Further Studies on the Effect of Feeling Good on Helping

A. Isen, P. Levin, Alice M. Isen, 1975 .