D22, J15, D83, C93, L86, L25
J46, O17, C93, J31, J61
D12; C90; D80
Q18, L66, D81, C93, D11
G5, H2, D1
C93, D83, I21, I24,
C93, D22, D90, J16, O12
D83, J12, C93, N36
C93 - Field Experiments; H52 - Government Expenditures and Education; I21 - Analysis of Education
J16, J24, C93, J33