O33, C93
D22, J15, D83, C93, L86, L25
J46, O17, C93, J31, J61
Q18, L66, D81, C93, D11
I20, I23, J24, O33
C93, D83, I21, I24,
I21, I24, I26, J16, J22, J24
C93, D22, D90, J16, O12
D83, J12, C93, N36
C93 - Field Experiments; H52 - Government Expenditures and Education; I21 - Analysis of Education