1. SWERA.NREL Solar and Wind Energy Resource Assessment. [Online] 2012. [Cited: Oct 14, 2012.] 〈http://maps.nrel.gov/SWERA〉
2. Potential of photovoltaic systems in countries with high solar irradiation;Makrides;Renewable and Sustainable Energy Reviews,2010
3. Costs of nuclear power plant construction: theory and new evidence;Marshall;Journal of Economics,1991
4. Model for quantifying the impact of change orders on project cost for U.S. roadwork construction;Serag;Journal of Construction Engineering and Management,2010
5. Econometric estimation of country-specific hospital costs;Adam;Cost Effectiveness and Resource Allocation,2003