1. Ahmad , N. 2002 The OECD input-output database The fourteenth international conference on input-output techniques
2. Ahmad , N. A. Wyckoff 2003 Carbon dioxide emissions embodied in international trade. DSTI/DOC(2003)15. Paris: Organisation for Economic Co-operation and Development
3. Bureau of Economic Analysis 2005 Bureau of Economic Analysis: Industry economic accounts. Online database
4. Update emissions from ocean shipping;Corbett;Journal of Geophysical Research--Atmospheres,2003
5. Structural path analysis and multiplier decomposition within a social accounting matrix framework;Defourny;The Economic Journal,1984