Min, Brian, 1975-
NY Cambridge University Press, 2015
Buku Teks
edited by Roberto Gargarella. Pilar Domingo, Theunis Roux
Ashgate Publishing Limited, 2006
Buku Teks
Flavin, Christopher
Worldwatch Institute, 1985
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Foster, Nigel
Oxford Univesity Press, 2008
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Gers, Juan M.
Institution of Engineering and Technology, 2005
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