Agricultura y biología
cost benefit analysis
94%
Ecuador
77%
wastewater
68%
subsurface flow
58%
contingent valuation
54%
farms
47%
social benefit
46%
economic feasibility
44%
solid wastes
44%
technicians
44%
farm management
42%
Latin America
41%
economic analysis
40%
developing countries
34%
planning
33%
effluents
33%
case studies
30%
liquids
24%
economics
23%
methodology
9%
Ciencias ambientales y de la tierra
cost-benefit analysis
83%
train
66%
farm
60%
wastewater
47%
contingent valuation
45%
economic analysis
40%
subsurface flow
39%
economic activity
37%
cost
36%
solid waste
33%
lagoon
32%
developing world
30%
effluent
25%
decision
22%
planning
22%
liquid
21%
economics
20%
methodology
20%
project
18%
method
7%
Medicina y ciencias biológicas
Ecuador
100%
Waste Water
92%
Farms
81%
Health Care Costs
64%
Cost-Benefit Analysis
61%
Economics
55%
Refuse Disposal
45%
Latin America
28%
Administrative Personnel
24%
Developing Countries
21%
Maintenance
16%
Technology
15%
Costs and Cost Analysis
14%
Therapeutics
7%
Ciencias sociales
cost-benefit analysis
83%
Ecuador
76%
farm
66%
economics
30%
costs
26%
social benefits
26%
technician
25%
environmental impact
22%
decision maker
21%
Latin America
20%
developing country
17%
planning
14%
methodology
12%
management
11%
Química
Wastewater
56%
Solid Waste
43%
Flow
22%
Liquid
19%