I15, O12, O17, Q18
O12,O13, O33, Q12,Q16
D91, J16, C93, D63, O12, J22
C93, J54, O12, O13
G52, Q14, Q12, O12
N57,O12,O13,Q12,Q16,Q18
D73, I38, O12, O22, O43
D12, O12, Q54
), O13 (Economic Development: Agriculture; Natural Resources; Energy; Environment), C93 (Field Experiments)
J28, J46, J81, O12, O17