J13;J22;I24;I12;J12;J16
I21 – Analysis of Education: Education and Economic Development I28 – Education: Government Policy I31 – General Welfare, Well-Being
I13, I15, O18, I12, Q53
D91, Z12, I12
I21, I28, C93, O15
C93, I21, I12, J13, I31
C91, D73, D91
I15, O12, O17, Q18
I23, I26, I28
Q12, O13, C93, Q18, O21, O53