D72, O55, P16
H53 (Government Expenditures and Welfare Programs) D91 (Role and Effects of Psychological
C99, D11, D81, D91
C99; D69; D91; J15
C90, D64, D91
J61, R12, R23, O15, D82, D83, D84
I25; F66; D91
D12, D83, D91, L86
C91, D83, D91
C93, D14, D91, O12