D11, D12, D91, C93, G51, O33
D12, D83, H42, I12, O33, Q54.
D14, D91, G51, G53, O33, C93
D91, D14, J16, J71
F13, D84, E71, C93
O12 (Microeconomic Analyses of Economic Development); O13 (Agriculture; Natural Resources); D12
G53, G51, G41, C93, R22
C83, D12, Q13, Q51, D83
Z12, G41, G53, C93, D14, O16.
O16, D14, I38