Nigeria: options for long-term development: report of a mission sent to Nigeria / the World Bank , Wouter Tims
Johns Hopkins University Press , 1974
 Buku Teks
The World competitiveness report 1990
The World Economic Forum, 1990
 Buku Teks
The state of environment report in Indonesia 2007
The State Ministry of Environment, 2008
 Buku Teks
Uqaili, Mohammad Aslam, editor
Energy, environment and sustainable development
Springer, 2012
 eBooks
World resources : a guide to the global environment
Allen L. Hammond [and others]
Oxford University Press , 1996
 Buku Teks
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