White, Rodney R., author
John Wiley & Sons, 1994
Buku Teks
Beatrix Beisner, Christian Messier, Luc-Alain Giraldeau
The University of Chicago Press, 2013
Buku Teks
Island Press, 2009
eBooks
Mike jenks, Colin jones
Springer, 2010
Buku Teks
Choldin, Harvey M.
McGraw-Hill, 1985
Buku Teks