Coley, David, author
John Wiley & Sons, 2008
Buku Teks
Elliott, David, author
Routledge, 1997
Buku Teks
edited by Bob Everett, Godfrey Boyle, Stephen Peake and Janet Ramage
Oxford University Press, 2012
Buku Teks
Walter Leal Filho, editor
[Springer, ], 2012
eBooks
Association of Academies of Sciences in Asia
Science Press, 2011
eBooks