O33, J24, D83, P10
O15, J16, J24, I38, D74
C93, D83, I21, I24,
I21, I24, I26, J16, J22, J24
J16, J24, M53, O12, O15
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
D03, D12, D91, L94, O13, Q41, C93, H42, H53