J24, J61, J64, I26, O15, D82.
F22, F24, I26, I3, J15, J16, Z1
C93, D73, J15, H75, I24
J71, J15, C93, J61
O16, F13, L25, G21
F22, J61, C93, D83
G1, G4, G5
O15 Economic Development: Human Resources, Human Development, Income Distribution, Migration J61
C90; C91; I21; J15; J16
G4, G5 R3