J24, J61, J64, I26, O15, D82.
C93, I21, J24, D83, O15
I20, I21, J24, O15
I20 I21 I22 I24 C93 O15
F22, F24, I23, I3, O15
I22, I28, O12, H52
I21, O15, C93
I20, I28, D04
I21, I25, I28, J24, O15
O15 Economic Development: Human Resources, Human Development, Income Distribution, Migration J61